Home / 87,970.46-121,399.45-47,684.18

Finding the Fourth Proportional to 87,970.46, 121,399.45 and 47,684.18

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Solution

The fourth proportional to 87,970.46, 121,399.45 and 47,684.18 is: 65,804.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,970.46 : 121,399.45 = 47,684.18 : x
  2. Step 2: Convert to fraction form
    87,970.46/121,399.45 = 47,684.18/x
  3. Step 3: Cross multiply
    87,970.46x = 121,399.45 × 47,684.18
  4. Step 4: Simplify right side
    87,970.46x = 5,788,833,225.70
  5. Step 5: Solve for x
    x = 5,788,833,225.70/87,970.46
  6. Step 6: Final answer
    x = 65,804.29

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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.