Home / 71,478.45-98,350.61-58,684.50

Finding the Fourth Proportional to 71,478.45, 98,350.61 and 58,684.50

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Solution

The fourth proportional to 71,478.45, 98,350.61 and 58,684.50 is: 80,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,478.45 : 98,350.61 = 58,684.50 : x
  2. Step 2: Convert to fraction form
    71,478.45/98,350.61 = 58,684.50/x
  3. Step 3: Cross multiply
    71,478.45x = 98,350.61 × 58,684.50
  4. Step 4: Simplify right side
    71,478.45x = 5,771,656,079.12
  5. Step 5: Solve for x
    x = 5,771,656,079.12/71,478.45
  6. Step 6: Final answer
    x = 80,746.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.