Home / 74,838.40-112,306.82-28,091.28

Finding the Fourth Proportional to 74,838.40, 112,306.82 and 28,091.28

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Solution

The fourth proportional to 74,838.40, 112,306.82 and 28,091.28 is: 42,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,838.40 : 112,306.82 = 28,091.28 : x
  2. Step 2: Convert to fraction form
    74,838.40/112,306.82 = 28,091.28/x
  3. Step 3: Cross multiply
    74,838.40x = 112,306.82 × 28,091.28
  4. Step 4: Simplify right side
    74,838.40x = 3,154,842,326.53
  5. Step 5: Solve for x
    x = 3,154,842,326.53/74,838.40
  6. Step 6: Final answer
    x = 42,155.40

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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.