Home / 78,925.26-118,346.31-53,972.40

Finding the Fourth Proportional to 78,925.26, 118,346.31 and 53,972.40

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Solution

The fourth proportional to 78,925.26, 118,346.31 and 53,972.40 is: 80,930.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,925.26 : 118,346.31 = 53,972.40 : x
  2. Step 2: Convert to fraction form
    78,925.26/118,346.31 = 53,972.40/x
  3. Step 3: Cross multiply
    78,925.26x = 118,346.31 × 53,972.40
  4. Step 4: Simplify right side
    78,925.26x = 6,387,434,381.84
  5. Step 5: Solve for x
    x = 6,387,434,381.84/78,925.26
  6. Step 6: Final answer
    x = 80,930.17

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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.