Home / 82,140.72-113,354.40-44,415.12

Finding the Fourth Proportional to 82,140.72, 113,354.40 and 44,415.12

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Solution

The fourth proportional to 82,140.72, 113,354.40 and 44,415.12 is: 61,292.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,140.72 : 113,354.40 = 44,415.12 : x
  2. Step 2: Convert to fraction form
    82,140.72/113,354.40 = 44,415.12/x
  3. Step 3: Cross multiply
    82,140.72x = 113,354.40 × 44,415.12
  4. Step 4: Simplify right side
    82,140.72x = 5,034,649,278.53
  5. Step 5: Solve for x
    x = 5,034,649,278.53/82,140.72
  6. Step 6: Final answer
    x = 61,292.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.