Home / 40,726.08-61,089.12-11,142.72

Finding the Fourth Proportional to 40,726.08, 61,089.12 and 11,142.72

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Solution

The fourth proportional to 40,726.08, 61,089.12 and 11,142.72 is: 16,714.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,726.08 : 61,089.12 = 11,142.72 : x
  2. Step 2: Convert to fraction form
    40,726.08/61,089.12 = 11,142.72/x
  3. Step 3: Cross multiply
    40,726.08x = 61,089.12 × 11,142.72
  4. Step 4: Simplify right side
    40,726.08x = 680,698,959.21
  5. Step 5: Solve for x
    x = 680,698,959.21/40,726.08
  6. Step 6: Final answer
    x = 16,714.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.