Home / 87,875.47-121,267.55-47,588.31

Finding the Fourth Proportional to 87,875.47, 121,267.55 and 47,588.31

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Solution

The fourth proportional to 87,875.47, 121,267.55 and 47,588.31 is: 65,671.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,875.47 : 121,267.55 = 47,588.31 : x
  2. Step 2: Convert to fraction form
    87,875.47/121,267.55 = 47,588.31/x
  3. Step 3: Cross multiply
    87,875.47x = 121,267.55 × 47,588.31
  4. Step 4: Simplify right side
    87,875.47x = 5,770,918,259.07
  5. Step 5: Solve for x
    x = 5,770,918,259.07/87,875.47
  6. Step 6: Final answer
    x = 65,671.55

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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.