Home / 90,562.18-124,977.20-50,278.54

Finding the Fourth Proportional to 90,562.18, 124,977.20 and 50,278.54

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Solution

The fourth proportional to 90,562.18, 124,977.20 and 50,278.54 is: 69,385.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,562.18 : 124,977.20 = 50,278.54 : x
  2. Step 2: Convert to fraction form
    90,562.18/124,977.20 = 50,278.54/x
  3. Step 3: Cross multiply
    90,562.18x = 124,977.20 × 50,278.54
  4. Step 4: Simplify right side
    90,562.18x = 6,283,671,149.29
  5. Step 5: Solve for x
    x = 6,283,671,149.29/90,562.18
  6. Step 6: Final answer
    x = 69,385.16

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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.