Home / 81,928.74-122,891.76-36,925.08

Finding the Fourth Proportional to 81,928.74, 122,891.76 and 36,925.08

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Solution

The fourth proportional to 81,928.74, 122,891.76 and 36,925.08 is: 55,387.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,928.74 : 122,891.76 = 36,925.08 : x
  2. Step 2: Convert to fraction form
    81,928.74/122,891.76 = 36,925.08/x
  3. Step 3: Cross multiply
    81,928.74x = 122,891.76 × 36,925.08
  4. Step 4: Simplify right side
    81,928.74x = 4,537,788,069.34
  5. Step 5: Solve for x
    x = 4,537,788,069.34/81,928.74
  6. Step 6: Final answer
    x = 55,387.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.