Home / 81,344.28-112,253.69-45,045.00

Finding the Fourth Proportional to 81,344.28, 112,253.69 and 45,045.00

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Solution

The fourth proportional to 81,344.28, 112,253.69 and 45,045.00 is: 62,161.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,344.28 : 112,253.69 = 45,045.00 : x
  2. Step 2: Convert to fraction form
    81,344.28/112,253.69 = 45,045.00/x
  3. Step 3: Cross multiply
    81,344.28x = 112,253.69 × 45,045.00
  4. Step 4: Simplify right side
    81,344.28x = 5,056,467,905.10
  5. Step 5: Solve for x
    x = 5,056,467,905.10/81,344.28
  6. Step 6: Final answer
    x = 62,161.32

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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.