Home / 77,821.40-116,841.45-48,296.90

Finding the Fourth Proportional to 77,821.40, 116,841.45 and 48,296.90

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Solution

The fourth proportional to 77,821.40, 116,841.45 and 48,296.90 is: 72,513.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,821.40 : 116,841.45 = 48,296.90 : x
  2. Step 2: Convert to fraction form
    77,821.40/116,841.45 = 48,296.90/x
  3. Step 3: Cross multiply
    77,821.40x = 116,841.45 × 48,296.90
  4. Step 4: Simplify right side
    77,821.40x = 5,643,079,826.51
  5. Step 5: Solve for x
    x = 5,643,079,826.51/77,821.40
  6. Step 6: Final answer
    x = 72,513.21

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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.