Home / 84,088.14-126,069-39,689.64

Finding the Fourth Proportional to 84,088.14, 126,069 and 39,689.64

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Solution

The fourth proportional to 84,088.14, 126,069 and 39,689.64 is: 59,504.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,088.14 : 126,069 = 39,689.64 : x
  2. Step 2: Convert to fraction form
    84,088.14/126,069 = 39,689.64/x
  3. Step 3: Cross multiply
    84,088.14x = 126,069 × 39,689.64
  4. Step 4: Simplify right side
    84,088.14x = 5,003,633,225.16
  5. Step 5: Solve for x
    x = 5,003,633,225.16/84,088.14
  6. Step 6: Final answer
    x = 59,504.62

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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.