Home / 81,080.52-111,877.77-45,264.75

Finding the Fourth Proportional to 81,080.52, 111,877.77 and 45,264.75

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Solution

The fourth proportional to 81,080.52, 111,877.77 and 45,264.75 is: 62,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,080.52 : 111,877.77 = 45,264.75 : x
  2. Step 2: Convert to fraction form
    81,080.52/111,877.77 = 45,264.75/x
  3. Step 3: Cross multiply
    81,080.52x = 111,877.77 × 45,264.75
  4. Step 4: Simplify right side
    81,080.52x = 5,064,119,289.61
  5. Step 5: Solve for x
    x = 5,064,119,289.61/81,080.52
  6. Step 6: Final answer
    x = 62,457.90

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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.