Home / 57,148.50-78,864.96-31,998.54

Finding the Fourth Proportional to 57,148.50, 78,864.96 and 31,998.54

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Solution

The fourth proportional to 57,148.50, 78,864.96 and 31,998.54 is: 44,158.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,148.50 : 78,864.96 = 31,998.54 : x
  2. Step 2: Convert to fraction form
    57,148.50/78,864.96 = 31,998.54/x
  3. Step 3: Cross multiply
    57,148.50x = 78,864.96 × 31,998.54
  4. Step 4: Simplify right side
    57,148.50x = 2,523,563,577.16
  5. Step 5: Solve for x
    x = 2,523,563,577.16/57,148.50
  6. Step 6: Final answer
    x = 44,158.00

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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.