Home / 86,861.06-130,310.72-49,438.74

Finding the Fourth Proportional to 86,861.06, 130,310.72 and 49,438.74

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Solution

The fourth proportional to 86,861.06, 130,310.72 and 49,438.74 is: 74,169.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,861.06 : 130,310.72 = 49,438.74 : x
  2. Step 2: Convert to fraction form
    86,861.06/130,310.72 = 49,438.74/x
  3. Step 3: Cross multiply
    86,861.06x = 130,310.72 × 49,438.74
  4. Step 4: Simplify right side
    86,861.06x = 6,442,397,805.29
  5. Step 5: Solve for x
    x = 6,442,397,805.29/86,861.06
  6. Step 6: Final answer
    x = 74,169.00

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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.