Home / 78,886.20-118,415.70-49,337.40

Finding the Fourth Proportional to 78,886.20, 118,415.70 and 49,337.40

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Solution

The fourth proportional to 78,886.20, 118,415.70 and 49,337.40 is: 74,060.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,886.20 : 118,415.70 = 49,337.40 : x
  2. Step 2: Convert to fraction form
    78,886.20/118,415.70 = 49,337.40/x
  3. Step 3: Cross multiply
    78,886.20x = 118,415.70 × 49,337.40
  4. Step 4: Simplify right side
    78,886.20x = 5,842,322,757.18
  5. Step 5: Solve for x
    x = 5,842,322,757.18/78,886.20
  6. Step 6: Final answer
    x = 74,060.14

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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.