Home / 83,030.55-124,515.45-26,885.40

Finding the Fourth Proportional to 83,030.55, 124,515.45 and 26,885.40

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Solution

The fourth proportional to 83,030.55, 124,515.45 and 26,885.40 is: 40,318.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,030.55 : 124,515.45 = 26,885.40 : x
  2. Step 2: Convert to fraction form
    83,030.55/124,515.45 = 26,885.40/x
  3. Step 3: Cross multiply
    83,030.55x = 124,515.45 × 26,885.40
  4. Step 4: Simplify right side
    83,030.55x = 3,347,647,679.43
  5. Step 5: Solve for x
    x = 3,347,647,679.43/83,030.55
  6. Step 6: Final answer
    x = 40,318.26

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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.