Home / 57,007.44-78,691.86-42,901.20

Finding the Fourth Proportional to 57,007.44, 78,691.86 and 42,901.20

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Solution

The fourth proportional to 57,007.44, 78,691.86 and 42,901.20 is: 59,219.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,007.44 : 78,691.86 = 42,901.20 : x
  2. Step 2: Convert to fraction form
    57,007.44/78,691.86 = 42,901.20/x
  3. Step 3: Cross multiply
    57,007.44x = 78,691.86 × 42,901.20
  4. Step 4: Simplify right side
    57,007.44x = 3,375,975,224.23
  5. Step 5: Solve for x
    x = 3,375,975,224.23/57,007.44
  6. Step 6: Final answer
    x = 59,219.91

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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.