Home / 56,970.29-78,612.29-31,475.13

Finding the Fourth Proportional to 56,970.29, 78,612.29 and 31,475.13

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Solution

The fourth proportional to 56,970.29, 78,612.29 and 31,475.13 is: 43,431.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,970.29 : 78,612.29 = 31,475.13 : x
  2. Step 2: Convert to fraction form
    56,970.29/78,612.29 = 31,475.13/x
  3. Step 3: Cross multiply
    56,970.29x = 78,612.29 × 31,475.13
  4. Step 4: Simplify right side
    56,970.29x = 2,474,331,889.97
  5. Step 5: Solve for x
    x = 2,474,331,889.97/56,970.29
  6. Step 6: Final answer
    x = 43,431.97

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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.