Home / 75,187.12-112,829.28-35,788.72

Finding the Fourth Proportional to 75,187.12, 112,829.28 and 35,788.72

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Solution

The fourth proportional to 75,187.12, 112,829.28 and 35,788.72 is: 53,706.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,187.12 : 112,829.28 = 35,788.72 : x
  2. Step 2: Convert to fraction form
    75,187.12/112,829.28 = 35,788.72/x
  3. Step 3: Cross multiply
    75,187.12x = 112,829.28 × 35,788.72
  4. Step 4: Simplify right side
    75,187.12x = 4,038,015,509.72
  5. Step 5: Solve for x
    x = 4,038,015,509.72/75,187.12
  6. Step 6: Final answer
    x = 53,706.21

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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.