Home / 76,939,528.32-106,173,360.44-42,131,619.06

Finding the Fourth Proportional to 76,939,528.32, 106,173,360.44 and 42,131,619.06

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Solution

The fourth proportional to 76,939,528.32, 106,173,360.44 and 42,131,619.06 is: 58,139,888.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,939,528.32 : 106,173,360.44 = 42,131,619.06 : x
  2. Step 2: Convert to fraction form
    76,939,528.32/106,173,360.44 = 42,131,619.06/x
  3. Step 3: Cross multiply
    76,939,528.32x = 106,173,360.44 × 42,131,619.06
  4. Step 4: Simplify right side
    76,939,528.32x = 4,473,255,576,378,154
  5. Step 5: Solve for x
    x = 4,473,255,576,378,154/76,939,528.32
  6. Step 6: Final answer
    x = 58,139,888.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.