Home / 86,861.16-130,160.52-64,569.96

Finding the Fourth Proportional to 86,861.16, 130,160.52 and 64,569.96

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Solution

The fourth proportional to 86,861.16, 130,160.52 and 64,569.96 is: 96,757.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,861.16 : 130,160.52 = 64,569.96 : x
  2. Step 2: Convert to fraction form
    86,861.16/130,160.52 = 64,569.96/x
  3. Step 3: Cross multiply
    86,861.16x = 130,160.52 × 64,569.96
  4. Step 4: Simplify right side
    86,861.16x = 8,404,459,569.98
  5. Step 5: Solve for x
    x = 8,404,459,569.98/86,861.16
  6. Step 6: Final answer
    x = 96,757.40

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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.