Home / 79,631.04-109,888.02-43,820.10

Finding the Fourth Proportional to 79,631.04, 109,888.02 and 43,820.10

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Solution

The fourth proportional to 79,631.04, 109,888.02 and 43,820.10 is: 60,470.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,631.04 : 109,888.02 = 43,820.10 : x
  2. Step 2: Convert to fraction form
    79,631.04/109,888.02 = 43,820.10/x
  3. Step 3: Cross multiply
    79,631.04x = 109,888.02 × 43,820.10
  4. Step 4: Simplify right side
    79,631.04x = 4,815,304,025.20
  5. Step 5: Solve for x
    x = 4,815,304,025.20/79,631.04
  6. Step 6: Final answer
    x = 60,470.19

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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.