Home / 90,168.09-124,392.85-54,337.74

Finding the Fourth Proportional to 90,168.09, 124,392.85 and 54,337.74

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Solution

The fourth proportional to 90,168.09, 124,392.85 and 54,337.74 is: 74,962.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,168.09 : 124,392.85 = 54,337.74 : x
  2. Step 2: Convert to fraction form
    90,168.09/124,392.85 = 54,337.74/x
  3. Step 3: Cross multiply
    90,168.09x = 124,392.85 × 54,337.74
  4. Step 4: Simplify right side
    90,168.09x = 6,759,226,069.47
  5. Step 5: Solve for x
    x = 6,759,226,069.47/90,168.09
  6. Step 6: Final answer
    x = 74,962.51

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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.