Home / 88,103.03-121,552.58-56,290.55

Finding the Fourth Proportional to 88,103.03, 121,552.58 and 56,290.55

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Solution

The fourth proportional to 88,103.03, 121,552.58 and 56,290.55 is: 77,662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,103.03 : 121,552.58 = 56,290.55 : x
  2. Step 2: Convert to fraction form
    88,103.03/121,552.58 = 56,290.55/x
  3. Step 3: Cross multiply
    88,103.03x = 121,552.58 × 56,290.55
  4. Step 4: Simplify right side
    88,103.03x = 6,842,261,115.08
  5. Step 5: Solve for x
    x = 6,842,261,115.08/88,103.03
  6. Step 6: Final answer
    x = 77,662.05

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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.