Home / 88,167.14-121,681.77-54,638.18

Finding the Fourth Proportional to 88,167.14, 121,681.77 and 54,638.18

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Solution

The fourth proportional to 88,167.14, 121,681.77 and 54,638.18 is: 75,407.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,167.14 : 121,681.77 = 54,638.18 : x
  2. Step 2: Convert to fraction form
    88,167.14/121,681.77 = 54,638.18/x
  3. Step 3: Cross multiply
    88,167.14x = 121,681.77 × 54,638.18
  4. Step 4: Simplify right side
    88,167.14x = 6,648,470,451.98
  5. Step 5: Solve for x
    x = 6,648,470,451.98/88,167.14
  6. Step 6: Final answer
    x = 75,407.58

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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.