Home / 80,570.52-111,156.30-59,400.12

Finding the Fourth Proportional to 80,570.52, 111,156.30 and 59,400.12

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Solution

The fourth proportional to 80,570.52, 111,156.30 and 59,400.12 is: 81,949.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,570.52 : 111,156.30 = 59,400.12 : x
  2. Step 2: Convert to fraction form
    80,570.52/111,156.30 = 59,400.12/x
  3. Step 3: Cross multiply
    80,570.52x = 111,156.30 × 59,400.12
  4. Step 4: Simplify right side
    80,570.52x = 6,602,697,558.76
  5. Step 5: Solve for x
    x = 6,602,697,558.76/80,570.52
  6. Step 6: Final answer
    x = 81,949.30

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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.