Home / 49,985.10-74,977.65-45,902.70

Finding the Fourth Proportional to 49,985.10, 74,977.65 and 45,902.70

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Solution

The fourth proportional to 49,985.10, 74,977.65 and 45,902.70 is: 68,854.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,985.10 : 74,977.65 = 45,902.70 : x
  2. Step 2: Convert to fraction form
    49,985.10/74,977.65 = 45,902.70/x
  3. Step 3: Cross multiply
    49,985.10x = 74,977.65 × 45,902.70
  4. Step 4: Simplify right side
    49,985.10x = 3,441,676,574.66
  5. Step 5: Solve for x
    x = 3,441,676,574.66/49,985.10
  6. Step 6: Final answer
    x = 68,854.05

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Similar ratio
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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.