Home / 87,995.04-121,405.14-53,968.56

Finding the Fourth Proportional to 87,995.04, 121,405.14 and 53,968.56

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Solution

The fourth proportional to 87,995.04, 121,405.14 and 53,968.56 is: 74,459.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,995.04 : 121,405.14 = 53,968.56 : x
  2. Step 2: Convert to fraction form
    87,995.04/121,405.14 = 53,968.56/x
  3. Step 3: Cross multiply
    87,995.04x = 121,405.14 × 53,968.56
  4. Step 4: Simplify right side
    87,995.04x = 6,552,060,582.40
  5. Step 5: Solve for x
    x = 6,552,060,582.40/87,995.04
  6. Step 6: Final answer
    x = 74,459.43

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1.5x scale

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.