Home / 62,139.20-85,722.77-42,003.11

Finding the Fourth Proportional to 62,139.20, 85,722.77 and 42,003.11

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Solution

The fourth proportional to 62,139.20, 85,722.77 and 42,003.11 is: 57,944.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,139.20 : 85,722.77 = 42,003.11 : x
  2. Step 2: Convert to fraction form
    62,139.20/85,722.77 = 42,003.11/x
  3. Step 3: Cross multiply
    62,139.20x = 85,722.77 × 42,003.11
  4. Step 4: Simplify right side
    62,139.20x = 3,600,622,509.20
  5. Step 5: Solve for x
    x = 3,600,622,509.20/62,139.20
  6. Step 6: Final answer
    x = 57,944.47

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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.