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Finding the Fourth Proportional to 86,894.69, 130,331.70 and 23,719.95

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Solution

The fourth proportional to 86,894.69, 130,331.70 and 23,719.95 is: 35,577.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,894.69 : 130,331.70 = 23,719.95 : x
  2. Step 2: Convert to fraction form
    86,894.69/130,331.70 = 23,719.95/x
  3. Step 3: Cross multiply
    86,894.69x = 130,331.70 × 23,719.95
  4. Step 4: Simplify right side
    86,894.69x = 3,091,461,407.42
  5. Step 5: Solve for x
    x = 3,091,461,407.42/86,894.69
  6. Step 6: Final answer
    x = 35,577.11

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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.