Home / 90,306.55-124,625.06-51,543.60

Finding the Fourth Proportional to 90,306.55, 124,625.06 and 51,543.60

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Solution

The fourth proportional to 90,306.55, 124,625.06 and 51,543.60 is: 71,131.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,306.55 : 124,625.06 = 51,543.60 : x
  2. Step 2: Convert to fraction form
    90,306.55/124,625.06 = 51,543.60/x
  3. Step 3: Cross multiply
    90,306.55x = 124,625.06 × 51,543.60
  4. Step 4: Simplify right side
    90,306.55x = 6,423,624,242.62
  5. Step 5: Solve for x
    x = 6,423,624,242.62/90,306.55
  6. Step 6: Final answer
    x = 71,131.32

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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.