Home / 77,686.19-116,531.80-21,526.85

Finding the Fourth Proportional to 77,686.19, 116,531.80 and 21,526.85

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Solution

The fourth proportional to 77,686.19, 116,531.80 and 21,526.85 is: 32,290.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,686.19 : 116,531.80 = 21,526.85 : x
  2. Step 2: Convert to fraction form
    77,686.19/116,531.80 = 21,526.85/x
  3. Step 3: Cross multiply
    77,686.19x = 116,531.80 × 21,526.85
  4. Step 4: Simplify right side
    77,686.19x = 2,508,562,578.83
  5. Step 5: Solve for x
    x = 2,508,562,578.83/77,686.19
  6. Step 6: Final answer
    x = 32,290.97

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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.