Home / 57,036.48-78,712.01-31,543.62

Finding the Fourth Proportional to 57,036.48, 78,712.01 and 31,543.62

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Solution

The fourth proportional to 57,036.48, 78,712.01 and 31,543.62 is: 43,531.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,036.48 : 78,712.01 = 31,543.62 : x
  2. Step 2: Convert to fraction form
    57,036.48/78,712.01 = 31,543.62/x
  3. Step 3: Cross multiply
    57,036.48x = 78,712.01 × 31,543.62
  4. Step 4: Simplify right side
    57,036.48x = 2,482,861,732.88
  5. Step 5: Solve for x
    x = 2,482,861,732.88/57,036.48
  6. Step 6: Final answer
    x = 43,531.12

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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.