Home / 282,442.50-423,663.36-72,080.43

Finding the Fourth Proportional to 282,442.50, 423,663.36 and 72,080.43

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Solution

The fourth proportional to 282,442.50, 423,663.36 and 72,080.43 is: 108,120.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,442.50 : 423,663.36 = 72,080.43 : x
  2. Step 2: Convert to fraction form
    282,442.50/423,663.36 = 72,080.43/x
  3. Step 3: Cross multiply
    282,442.50x = 423,663.36 × 72,080.43
  4. Step 4: Simplify right side
    282,442.50x = 30,537,837,164.04
  5. Step 5: Solve for x
    x = 30,537,837,164.04/282,442.50
  6. Step 6: Final answer
    x = 108,120.55

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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.