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Finding the Fourth Proportional to 86,158.72, 118,825.76 and 59,344.64

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Solution

The fourth proportional to 86,158.72, 118,825.76 and 59,344.64 is: 81,845.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,158.72 : 118,825.76 = 59,344.64 : x
  2. Step 2: Convert to fraction form
    86,158.72/118,825.76 = 59,344.64/x
  3. Step 3: Cross multiply
    86,158.72x = 118,825.76 × 59,344.64
  4. Step 4: Simplify right side
    86,158.72x = 7,051,671,949.93
  5. Step 5: Solve for x
    x = 7,051,671,949.93/86,158.72
  6. Step 6: Final answer
    x = 81,845.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.