Home / 90,374.34-124,713.20-50,088.78

Finding the Fourth Proportional to 90,374.34, 124,713.20 and 50,088.78

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Solution

The fourth proportional to 90,374.34, 124,713.20 and 50,088.78 is: 69,120.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,374.34 : 124,713.20 = 50,088.78 : x
  2. Step 2: Convert to fraction form
    90,374.34/124,713.20 = 50,088.78/x
  3. Step 3: Cross multiply
    90,374.34x = 124,713.20 × 50,088.78
  4. Step 4: Simplify right side
    90,374.34x = 6,246,732,037.90
  5. Step 5: Solve for x
    x = 6,246,732,037.90/90,374.34
  6. Step 6: Final answer
    x = 69,120.64

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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.