Home / 84,069.64-126,108.06-39,133.18

Finding the Fourth Proportional to 84,069.64, 126,108.06 and 39,133.18

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Solution

The fourth proportional to 84,069.64, 126,108.06 and 39,133.18 is: 58,701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,069.64 : 126,108.06 = 39,133.18 : x
  2. Step 2: Convert to fraction form
    84,069.64/126,108.06 = 39,133.18/x
  3. Step 3: Cross multiply
    84,069.64x = 126,108.06 × 39,133.18
  4. Step 4: Simplify right side
    84,069.64x = 4,935,009,411.43
  5. Step 5: Solve for x
    x = 4,935,009,411.43/84,069.64
  6. Step 6: Final answer
    x = 58,701.45

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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.