Home / 87,386.56-130,797.91-45,208.56

Finding the Fourth Proportional to 87,386.56, 130,797.91 and 45,208.56

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Solution

The fourth proportional to 87,386.56, 130,797.91 and 45,208.56 is: 67,666.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,386.56 : 130,797.91 = 45,208.56 : x
  2. Step 2: Convert to fraction form
    87,386.56/130,797.91 = 45,208.56/x
  3. Step 3: Cross multiply
    87,386.56x = 130,797.91 × 45,208.56
  4. Step 4: Simplify right side
    87,386.56x = 5,913,185,162.11
  5. Step 5: Solve for x
    x = 5,913,185,162.11/87,386.56
  6. Step 6: Final answer
    x = 67,666.99

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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.