Home / 56,970.84-78,619.48-31,477.20

Finding the Fourth Proportional to 56,970.84, 78,619.48 and 31,477.20

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Solution

The fourth proportional to 56,970.84, 78,619.48 and 31,477.20 is: 43,438.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,970.84 : 78,619.48 = 31,477.20 : x
  2. Step 2: Convert to fraction form
    56,970.84/78,619.48 = 31,477.20/x
  3. Step 3: Cross multiply
    56,970.84x = 78,619.48 × 31,477.20
  4. Step 4: Simplify right side
    56,970.84x = 2,474,721,095.86
  5. Step 5: Solve for x
    x = 2,474,721,095.86/56,970.84
  6. Step 6: Final answer
    x = 43,438.38

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1.5x scale

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.