Home / 87,656.61-120,966.16-47,370.36

Finding the Fourth Proportional to 87,656.61, 120,966.16 and 47,370.36

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Solution

The fourth proportional to 87,656.61, 120,966.16 and 47,370.36 is: 65,371.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,656.61 : 120,966.16 = 47,370.36 : x
  2. Step 2: Convert to fraction form
    87,656.61/120,966.16 = 47,370.36/x
  3. Step 3: Cross multiply
    87,656.61x = 120,966.16 × 47,370.36
  4. Step 4: Simplify right side
    87,656.61x = 5,730,210,547.02
  5. Step 5: Solve for x
    x = 5,730,210,547.02/87,656.61
  6. Step 6: Final answer
    x = 65,371.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.