Home / 91,721.52-126,577.05-53,480.04

Finding the Fourth Proportional to 91,721.52, 126,577.05 and 53,480.04

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Solution

The fourth proportional to 91,721.52, 126,577.05 and 53,480.04 is: 73,803.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,721.52 : 126,577.05 = 53,480.04 : x
  2. Step 2: Convert to fraction form
    91,721.52/126,577.05 = 53,480.04/x
  3. Step 3: Cross multiply
    91,721.52x = 126,577.05 × 53,480.04
  4. Step 4: Simplify right side
    91,721.52x = 6,769,345,697.08
  5. Step 5: Solve for x
    x = 6,769,345,697.08/91,721.52
  6. Step 6: Final answer
    x = 73,803.24

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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.