Home / 90,371.10-124,713.12-50,085.66

Finding the Fourth Proportional to 90,371.10, 124,713.12 and 50,085.66

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Solution

The fourth proportional to 90,371.10, 124,713.12 and 50,085.66 is: 69,118.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,371.10 : 124,713.12 = 50,085.66 : x
  2. Step 2: Convert to fraction form
    90,371.10/124,713.12 = 50,085.66/x
  3. Step 3: Cross multiply
    90,371.10x = 124,713.12 × 50,085.66
  4. Step 4: Simplify right side
    90,371.10x = 6,246,338,925.86
  5. Step 5: Solve for x
    x = 6,246,338,925.86/90,371.10
  6. Step 6: Final answer
    x = 69,118.77

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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.