Home / 83,330.80-124,971.40-45,374

Finding the Fourth Proportional to 83,330.80, 124,971.40 and 45,374

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Solution

The fourth proportional to 83,330.80, 124,971.40 and 45,374 is: 68,047.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,330.80 : 124,971.40 = 45,374 : x
  2. Step 2: Convert to fraction form
    83,330.80/124,971.40 = 45,374/x
  3. Step 3: Cross multiply
    83,330.80x = 124,971.40 × 45,374
  4. Step 4: Simplify right side
    83,330.80x = 5,670,452,303.60
  5. Step 5: Solve for x
    x = 5,670,452,303.60/83,330.80
  6. Step 6: Final answer
    x = 68,047.50

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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.