Home / 86,580.10-129,870.15-49,613.70

Finding the Fourth Proportional to 86,580.10, 129,870.15 and 49,613.70

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Solution

The fourth proportional to 86,580.10, 129,870.15 and 49,613.70 is: 74,420.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,580.10 : 129,870.15 = 49,613.70 : x
  2. Step 2: Convert to fraction form
    86,580.10/129,870.15 = 49,613.70/x
  3. Step 3: Cross multiply
    86,580.10x = 129,870.15 × 49,613.70
  4. Step 4: Simplify right side
    86,580.10x = 6,443,338,661.06
  5. Step 5: Solve for x
    x = 6,443,338,661.06/86,580.10
  6. Step 6: Final answer
    x = 74,420.55

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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.