Home / 90,384.66-124,728.71-52,144.29

Finding the Fourth Proportional to 90,384.66, 124,728.71 and 52,144.29

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Solution

The fourth proportional to 90,384.66, 124,728.71 and 52,144.29 is: 71,957.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,384.66 : 124,728.71 = 52,144.29 : x
  2. Step 2: Convert to fraction form
    90,384.66/124,728.71 = 52,144.29/x
  3. Step 3: Cross multiply
    90,384.66x = 124,728.71 × 52,144.29
  4. Step 4: Simplify right side
    90,384.66x = 6,503,889,764.84
  5. Step 5: Solve for x
    x = 6,503,889,764.84/90,384.66
  6. Step 6: Final answer
    x = 71,957.89

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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.