Home / 77,657.40-106,902.74-57,476.24

Finding the Fourth Proportional to 77,657.40, 106,902.74 and 57,476.24

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Solution

The fourth proportional to 77,657.40, 106,902.74 and 57,476.24 is: 79,121.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,657.40 : 106,902.74 = 57,476.24 : x
  2. Step 2: Convert to fraction form
    77,657.40/106,902.74 = 57,476.24/x
  3. Step 3: Cross multiply
    77,657.40x = 106,902.74 × 57,476.24
  4. Step 4: Simplify right side
    77,657.40x = 6,144,367,540.90
  5. Step 5: Solve for x
    x = 6,144,367,540.90/77,657.40
  6. Step 6: Final answer
    x = 79,121.47

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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.