Home / 72,066.49-99,423.15-48,155.29

Finding the Fourth Proportional to 72,066.49, 99,423.15 and 48,155.29

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Solution

The fourth proportional to 72,066.49, 99,423.15 and 48,155.29 is: 66,435.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,066.49 : 99,423.15 = 48,155.29 : x
  2. Step 2: Convert to fraction form
    72,066.49/99,423.15 = 48,155.29/x
  3. Step 3: Cross multiply
    72,066.49x = 99,423.15 × 48,155.29
  4. Step 4: Simplify right side
    72,066.49x = 4,787,750,620.96
  5. Step 5: Solve for x
    x = 4,787,750,620.96/72,066.49
  6. Step 6: Final answer
    x = 66,435.19

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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.