Home / 91,423.65-126,138.38-52,654.29

Finding the Fourth Proportional to 91,423.65, 126,138.38 and 52,654.29

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Solution

The fourth proportional to 91,423.65, 126,138.38 and 52,654.29 is: 72,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,423.65 : 126,138.38 = 52,654.29 : x
  2. Step 2: Convert to fraction form
    91,423.65/126,138.38 = 52,654.29/x
  3. Step 3: Cross multiply
    91,423.65x = 126,138.38 × 52,654.29
  4. Step 4: Simplify right side
    91,423.65x = 6,641,727,464.83
  5. Step 5: Solve for x
    x = 6,641,727,464.83/91,423.65
  6. Step 6: Final answer
    x = 72,647.80

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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.