Home / 80,721.17-121,100.19-24,569.24

Finding the Fourth Proportional to 80,721.17, 121,100.19 and 24,569.24

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Solution

The fourth proportional to 80,721.17, 121,100.19 and 24,569.24 is: 36,859.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,721.17 : 121,100.19 = 24,569.24 : x
  2. Step 2: Convert to fraction form
    80,721.17/121,100.19 = 24,569.24/x
  3. Step 3: Cross multiply
    80,721.17x = 121,100.19 × 24,569.24
  4. Step 4: Simplify right side
    80,721.17x = 2,975,338,903.81
  5. Step 5: Solve for x
    x = 2,975,338,903.81/80,721.17
  6. Step 6: Final answer
    x = 36,859.46

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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.