Home / 78,264.47-117,345.67-51,529.55

Finding the Fourth Proportional to 78,264.47, 117,345.67 and 51,529.55

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Solution

The fourth proportional to 78,264.47, 117,345.67 and 51,529.55 is: 77,260.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,264.47 : 117,345.67 = 51,529.55 : x
  2. Step 2: Convert to fraction form
    78,264.47/117,345.67 = 51,529.55/x
  3. Step 3: Cross multiply
    78,264.47x = 117,345.67 × 51,529.55
  4. Step 4: Simplify right side
    78,264.47x = 6,046,768,854.00
  5. Step 5: Solve for x
    x = 6,046,768,854.00/78,264.47
  6. Step 6: Final answer
    x = 77,260.71

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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.