Home / 87,970.46-121,320.78-68,594.10

Finding the Fourth Proportional to 87,970.46, 121,320.78 and 68,594.10

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Solution

The fourth proportional to 87,970.46, 121,320.78 and 68,594.10 is: 94,598.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,970.46 : 121,320.78 = 68,594.10 : x
  2. Step 2: Convert to fraction form
    87,970.46/121,320.78 = 68,594.10/x
  3. Step 3: Cross multiply
    87,970.46x = 121,320.78 × 68,594.10
  4. Step 4: Simplify right side
    87,970.46x = 8,321,889,715.40
  5. Step 5: Solve for x
    x = 8,321,889,715.40/87,970.46
  6. Step 6: Final answer
    x = 94,598.68

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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.