Home / 77,185.76-106,520.27-45,364.91

Finding the Fourth Proportional to 77,185.76, 106,520.27 and 45,364.91

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Solution

The fourth proportional to 77,185.76, 106,520.27 and 45,364.91 is: 62,605.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,185.76 : 106,520.27 = 45,364.91 : x
  2. Step 2: Convert to fraction form
    77,185.76/106,520.27 = 45,364.91/x
  3. Step 3: Cross multiply
    77,185.76x = 106,520.27 × 45,364.91
  4. Step 4: Simplify right side
    77,185.76x = 4,832,281,702.30
  5. Step 5: Solve for x
    x = 4,832,281,702.30/77,185.76
  6. Step 6: Final answer
    x = 62,605.87

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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.