Home / 87,899.02-121,300.59-47,612.69

Finding the Fourth Proportional to 87,899.02, 121,300.59 and 47,612.69

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Solution

The fourth proportional to 87,899.02, 121,300.59 and 47,612.69 is: 65,705.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,899.02 : 121,300.59 = 47,612.69 : x
  2. Step 2: Convert to fraction form
    87,899.02/121,300.59 = 47,612.69/x
  3. Step 3: Cross multiply
    87,899.02x = 121,300.59 × 47,612.69
  4. Step 4: Simplify right side
    87,899.02x = 5,775,446,543.92
  5. Step 5: Solve for x
    x = 5,775,446,543.92/87,899.02
  6. Step 6: Final answer
    x = 65,705.48

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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.