Home / 54,258.30-81,387.45-45,510.30

Finding the Fourth Proportional to 54,258.30, 81,387.45 and 45,510.30

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Solution

The fourth proportional to 54,258.30, 81,387.45 and 45,510.30 is: 68,265.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,258.30 : 81,387.45 = 45,510.30 : x
  2. Step 2: Convert to fraction form
    54,258.30/81,387.45 = 45,510.30/x
  3. Step 3: Cross multiply
    54,258.30x = 81,387.45 × 45,510.30
  4. Step 4: Simplify right side
    54,258.30x = 3,703,967,265.74
  5. Step 5: Solve for x
    x = 3,703,967,265.74/54,258.30
  6. Step 6: Final answer
    x = 68,265.45

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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.