Home / 83,438.15-125,158.02-20,258.84

Finding the Fourth Proportional to 83,438.15, 125,158.02 and 20,258.84

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Solution

The fourth proportional to 83,438.15, 125,158.02 and 20,258.84 is: 30,388.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,438.15 : 125,158.02 = 20,258.84 : x
  2. Step 2: Convert to fraction form
    83,438.15/125,158.02 = 20,258.84/x
  3. Step 3: Cross multiply
    83,438.15x = 125,158.02 × 20,258.84
  4. Step 4: Simplify right side
    83,438.15x = 2,535,555,574.81
  5. Step 5: Solve for x
    x = 2,535,555,574.81/83,438.15
  6. Step 6: Final answer
    x = 30,388.44

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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.