Home / 86,813.64-130,085.79-60,211.53

Finding the Fourth Proportional to 86,813.64, 130,085.79 and 60,211.53

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Solution

The fourth proportional to 86,813.64, 130,085.79 and 60,211.53 is: 90,223.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,813.64 : 130,085.79 = 60,211.53 : x
  2. Step 2: Convert to fraction form
    86,813.64/130,085.79 = 60,211.53/x
  3. Step 3: Cross multiply
    86,813.64x = 130,085.79 × 60,211.53
  4. Step 4: Simplify right side
    86,813.64x = 7,832,664,447.16
  5. Step 5: Solve for x
    x = 7,832,664,447.16/86,813.64
  6. Step 6: Final answer
    x = 90,223.89

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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.