Home / 88,278.12-121,859.10-54,300.38

Finding the Fourth Proportional to 88,278.12, 121,859.10 and 54,300.38

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Solution

The fourth proportional to 88,278.12, 121,859.10 and 54,300.38 is: 74,956.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,278.12 : 121,859.10 = 54,300.38 : x
  2. Step 2: Convert to fraction form
    88,278.12/121,859.10 = 54,300.38/x
  3. Step 3: Cross multiply
    88,278.12x = 121,859.10 × 54,300.38
  4. Step 4: Simplify right side
    88,278.12x = 6,616,994,827.16
  5. Step 5: Solve for x
    x = 6,616,994,827.16/88,278.12
  6. Step 6: Final answer
    x = 74,956.23

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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.