Home / 87,952.40-121,307.90-55,256.32

Finding the Fourth Proportional to 87,952.40, 121,307.90 and 55,256.32

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Solution

The fourth proportional to 87,952.40, 121,307.90 and 55,256.32 is: 76,212.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,952.40 : 121,307.90 = 55,256.32 : x
  2. Step 2: Convert to fraction form
    87,952.40/121,307.90 = 55,256.32/x
  3. Step 3: Cross multiply
    87,952.40x = 121,307.90 × 55,256.32
  4. Step 4: Simplify right side
    87,952.40x = 6,703,028,140.93
  5. Step 5: Solve for x
    x = 6,703,028,140.93/87,952.40
  6. Step 6: Final answer
    x = 76,212.00

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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.