Home / 75,084.10-112,642.71-28,337.38

Finding the Fourth Proportional to 75,084.10, 112,642.71 and 28,337.38

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Solution

The fourth proportional to 75,084.10, 112,642.71 and 28,337.38 is: 42,512.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,084.10 : 112,642.71 = 28,337.38 : x
  2. Step 2: Convert to fraction form
    75,084.10/112,642.71 = 28,337.38/x
  3. Step 3: Cross multiply
    75,084.10x = 112,642.71 × 28,337.38
  4. Step 4: Simplify right side
    75,084.10x = 3,191,999,277.50
  5. Step 5: Solve for x
    x = 3,191,999,277.50/75,084.10
  6. Step 6: Final answer
    x = 42,512.32

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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.