Home / 60,712.20-91,028.70-54,491.40

Finding the Fourth Proportional to 60,712.20, 91,028.70 and 54,491.40

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Solution

The fourth proportional to 60,712.20, 91,028.70 and 54,491.40 is: 81,701.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,712.20 : 91,028.70 = 54,491.40 : x
  2. Step 2: Convert to fraction form
    60,712.20/91,028.70 = 54,491.40/x
  3. Step 3: Cross multiply
    60,712.20x = 91,028.70 × 54,491.40
  4. Step 4: Simplify right side
    60,712.20x = 4,960,281,303.18
  5. Step 5: Solve for x
    x = 4,960,281,303.18/60,712.20
  6. Step 6: Final answer
    x = 81,701.56

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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.