Home / 56,756.64-78,313.20-31,606.08

Finding the Fourth Proportional to 56,756.64, 78,313.20 and 31,606.08

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Solution

The fourth proportional to 56,756.64, 78,313.20 and 31,606.08 is: 43,610.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,756.64 : 78,313.20 = 31,606.08 : x
  2. Step 2: Convert to fraction form
    56,756.64/78,313.20 = 31,606.08/x
  3. Step 3: Cross multiply
    56,756.64x = 78,313.20 × 31,606.08
  4. Step 4: Simplify right side
    56,756.64x = 2,475,173,264.26
  5. Step 5: Solve for x
    x = 2,475,173,264.26/56,756.64
  6. Step 6: Final answer
    x = 43,610.29

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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.