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Finding the Fourth Proportional to 83,335.84, 115,000.08 and 49,820.32

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Solution

The fourth proportional to 83,335.84, 115,000.08 and 49,820.32 is: 68,750.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,335.84 : 115,000.08 = 49,820.32 : x
  2. Step 2: Convert to fraction form
    83,335.84/115,000.08 = 49,820.32/x
  3. Step 3: Cross multiply
    83,335.84x = 115,000.08 × 49,820.32
  4. Step 4: Simplify right side
    83,335.84x = 5,729,340,785.63
  5. Step 5: Solve for x
    x = 5,729,340,785.63/83,335.84
  6. Step 6: Final answer
    x = 68,750.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.