Home / 78,097.13-117,150.23-21,941.61

Finding the Fourth Proportional to 78,097.13, 117,150.23 and 21,941.61

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Solution

The fourth proportional to 78,097.13, 117,150.23 and 21,941.61 is: 32,913.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,097.13 : 117,150.23 = 21,941.61 : x
  2. Step 2: Convert to fraction form
    78,097.13/117,150.23 = 21,941.61/x
  3. Step 3: Cross multiply
    78,097.13x = 117,150.23 × 21,941.61
  4. Step 4: Simplify right side
    78,097.13x = 2,570,465,152.24
  5. Step 5: Solve for x
    x = 2,570,465,152.24/78,097.13
  6. Step 6: Final answer
    x = 32,913.70

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1.5x scale

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.