Home / 87,117.84-130,575.51-39,661.56

Finding the Fourth Proportional to 87,117.84, 130,575.51 and 39,661.56

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Solution

The fourth proportional to 87,117.84, 130,575.51 and 39,661.56 is: 59,446.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,117.84 : 130,575.51 = 39,661.56 : x
  2. Step 2: Convert to fraction form
    87,117.84/130,575.51 = 39,661.56/x
  3. Step 3: Cross multiply
    87,117.84x = 130,575.51 × 39,661.56
  4. Step 4: Simplify right side
    87,117.84x = 5,178,828,424.40
  5. Step 5: Solve for x
    x = 5,178,828,424.40/87,117.84
  6. Step 6: Final answer
    x = 59,446.24

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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.