Home / 90,412.65-124,744.14-52,679.61

Finding the Fourth Proportional to 90,412.65, 124,744.14 and 52,679.61

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Solution

The fourth proportional to 90,412.65, 124,744.14 and 52,679.61 is: 72,683.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,412.65 : 124,744.14 = 52,679.61 : x
  2. Step 2: Convert to fraction form
    90,412.65/124,744.14 = 52,679.61/x
  3. Step 3: Cross multiply
    90,412.65x = 124,744.14 × 52,679.61
  4. Step 4: Simplify right side
    90,412.65x = 6,571,472,644.99
  5. Step 5: Solve for x
    x = 6,571,472,644.99/90,412.65
  6. Step 6: Final answer
    x = 72,683.11

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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.