Home / 86,861.07-130,121.91-59,838.64

Finding the Fourth Proportional to 86,861.07, 130,121.91 and 59,838.64

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Solution

The fourth proportional to 86,861.07, 130,121.91 and 59,838.64 is: 89,641.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,861.07 : 130,121.91 = 59,838.64 : x
  2. Step 2: Convert to fraction form
    86,861.07/130,121.91 = 59,838.64/x
  3. Step 3: Cross multiply
    86,861.07x = 130,121.91 × 59,838.64
  4. Step 4: Simplify right side
    86,861.07x = 7,786,318,128.60
  5. Step 5: Solve for x
    x = 7,786,318,128.60/86,861.07
  6. Step 6: Final answer
    x = 89,641.06

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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.