Home / 72,222.30-108,397.45-42,603.10

Finding the Fourth Proportional to 72,222.30, 108,397.45 and 42,603.10

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Solution

The fourth proportional to 72,222.30, 108,397.45 and 42,603.10 is: 63,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,222.30 : 108,397.45 = 42,603.10 : x
  2. Step 2: Convert to fraction form
    72,222.30/108,397.45 = 42,603.10/x
  3. Step 3: Cross multiply
    72,222.30x = 108,397.45 × 42,603.10
  4. Step 4: Simplify right side
    72,222.30x = 4,618,067,402.10
  5. Step 5: Solve for x
    x = 4,618,067,402.10/72,222.30
  6. Step 6: Final answer
    x = 63,942.40

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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.