Home / 45,403.20-62,668.08-40,679.28

Finding the Fourth Proportional to 45,403.20, 62,668.08 and 40,679.28

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Solution

The fourth proportional to 45,403.20, 62,668.08 and 40,679.28 is: 56,147.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,403.20 : 62,668.08 = 40,679.28 : x
  2. Step 2: Convert to fraction form
    45,403.20/62,668.08 = 40,679.28/x
  3. Step 3: Cross multiply
    45,403.20x = 62,668.08 × 40,679.28
  4. Step 4: Simplify right side
    45,403.20x = 2,549,292,373.38
  5. Step 5: Solve for x
    x = 2,549,292,373.38/45,403.20
  6. Step 6: Final answer
    x = 56,147.86

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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.