Home / 91,711.04-126,583.72-55,920.76

Finding the Fourth Proportional to 91,711.04, 126,583.72 and 55,920.76

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Solution

The fourth proportional to 91,711.04, 126,583.72 and 55,920.76 is: 77,184.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,711.04 : 126,583.72 = 55,920.76 : x
  2. Step 2: Convert to fraction form
    91,711.04/126,583.72 = 55,920.76/x
  3. Step 3: Cross multiply
    91,711.04x = 126,583.72 × 55,920.76
  4. Step 4: Simplify right side
    91,711.04x = 7,078,657,826.03
  5. Step 5: Solve for x
    x = 7,078,657,826.03/91,711.04
  6. Step 6: Final answer
    x = 77,184.36

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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.