Home / 80,734.79-111,445.01-60,649.93

Finding the Fourth Proportional to 80,734.79, 111,445.01 and 60,649.93

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Solution

The fourth proportional to 80,734.79, 111,445.01 and 60,649.93 is: 83,720.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,734.79 : 111,445.01 = 60,649.93 : x
  2. Step 2: Convert to fraction form
    80,734.79/111,445.01 = 60,649.93/x
  3. Step 3: Cross multiply
    80,734.79x = 111,445.01 × 60,649.93
  4. Step 4: Simplify right side
    80,734.79x = 6,759,132,460.00
  5. Step 5: Solve for x
    x = 6,759,132,460.00/80,734.79
  6. Step 6: Final answer
    x = 83,720.19

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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.