Home / 86,678.61-129,795.93-59,987.64

Finding the Fourth Proportional to 86,678.61, 129,795.93 and 59,987.64

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Solution

The fourth proportional to 86,678.61, 129,795.93 and 59,987.64 is: 89,827.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,678.61 : 129,795.93 = 59,987.64 : x
  2. Step 2: Convert to fraction form
    86,678.61/129,795.93 = 59,987.64/x
  3. Step 3: Cross multiply
    86,678.61x = 129,795.93 × 59,987.64
  4. Step 4: Simplify right side
    86,678.61x = 7,786,151,522.31
  5. Step 5: Solve for x
    x = 7,786,151,522.31/86,678.61
  6. Step 6: Final answer
    x = 89,827.83

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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.