Home / 91,024.12-136,543.02-28,693

Finding the Fourth Proportional to 91,024.12, 136,543.02 and 28,693

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Solution

The fourth proportional to 91,024.12, 136,543.02 and 28,693 is: 43,041.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,024.12 : 136,543.02 = 28,693 : x
  2. Step 2: Convert to fraction form
    91,024.12/136,543.02 = 28,693/x
  3. Step 3: Cross multiply
    91,024.12x = 136,543.02 × 28,693
  4. Step 4: Simplify right side
    91,024.12x = 3,917,828,872.86
  5. Step 5: Solve for x
    x = 3,917,828,872.86/91,024.12
  6. Step 6: Final answer
    x = 43,041.66

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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.