Home / 78,323.47-117,306.87-61,350.52

Finding the Fourth Proportional to 78,323.47, 117,306.87 and 61,350.52

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Solution

The fourth proportional to 78,323.47, 117,306.87 and 61,350.52 is: 91,886.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,323.47 : 117,306.87 = 61,350.52 : x
  2. Step 2: Convert to fraction form
    78,323.47/117,306.87 = 61,350.52/x
  3. Step 3: Cross multiply
    78,323.47x = 117,306.87 × 61,350.52
  4. Step 4: Simplify right side
    78,323.47x = 7,196,837,474.07
  5. Step 5: Solve for x
    x = 7,196,837,474.07/78,323.47
  6. Step 6: Final answer
    x = 91,886.09

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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.