Home / 78,923.52-118,429.02-32,172.78

Finding the Fourth Proportional to 78,923.52, 118,429.02 and 32,172.78

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Solution

The fourth proportional to 78,923.52, 118,429.02 and 32,172.78 is: 48,277.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,923.52 : 118,429.02 = 32,172.78 : x
  2. Step 2: Convert to fraction form
    78,923.52/118,429.02 = 32,172.78/x
  3. Step 3: Cross multiply
    78,923.52x = 118,429.02 × 32,172.78
  4. Step 4: Simplify right side
    78,923.52x = 3,810,190,806.08
  5. Step 5: Solve for x
    x = 3,810,190,806.08/78,923.52
  6. Step 6: Final answer
    x = 48,277.00

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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.