Home / 81,206.42-121,808.29-24,280.46

Finding the Fourth Proportional to 81,206.42, 121,808.29 and 24,280.46

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Solution

The fourth proportional to 81,206.42, 121,808.29 and 24,280.46 is: 36,420.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,206.42 : 121,808.29 = 24,280.46 : x
  2. Step 2: Convert to fraction form
    81,206.42/121,808.29 = 24,280.46/x
  3. Step 3: Cross multiply
    81,206.42x = 121,808.29 × 24,280.46
  4. Step 4: Simplify right side
    81,206.42x = 2,957,561,313.01
  5. Step 5: Solve for x
    x = 2,957,561,313.01/81,206.42
  6. Step 6: Final answer
    x = 36,420.29

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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.