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Finding the Fourth Proportional to 78,881.60, 118,282.08 and 23,470.40

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Solution

The fourth proportional to 78,881.60, 118,282.08 and 23,470.40 is: 35,193.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,881.60 : 118,282.08 = 23,470.40 : x
  2. Step 2: Convert to fraction form
    78,881.60/118,282.08 = 23,470.40/x
  3. Step 3: Cross multiply
    78,881.60x = 118,282.08 × 23,470.40
  4. Step 4: Simplify right side
    78,881.60x = 2,776,127,730.43
  5. Step 5: Solve for x
    x = 2,776,127,730.43/78,881.60
  6. Step 6: Final answer
    x = 35,193.60

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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.