Home / 42,085.13-63,139.55-14,007.70

Finding the Fourth Proportional to 42,085.13, 63,139.55 and 14,007.70

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Solution

The fourth proportional to 42,085.13, 63,139.55 and 14,007.70 is: 21,015.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,085.13 : 63,139.55 = 14,007.70 : x
  2. Step 2: Convert to fraction form
    42,085.13/63,139.55 = 14,007.70/x
  3. Step 3: Cross multiply
    42,085.13x = 63,139.55 × 14,007.70
  4. Step 4: Simplify right side
    42,085.13x = 884,439,874.54
  5. Step 5: Solve for x
    x = 884,439,874.54/42,085.13
  6. Step 6: Final answer
    x = 21,015.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.