Home / 77,511.12-106,937.76-50,669.04

Finding the Fourth Proportional to 77,511.12, 106,937.76 and 50,669.04

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Solution

The fourth proportional to 77,511.12, 106,937.76 and 50,669.04 is: 69,905.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,511.12 : 106,937.76 = 50,669.04 : x
  2. Step 2: Convert to fraction form
    77,511.12/106,937.76 = 50,669.04/x
  3. Step 3: Cross multiply
    77,511.12x = 106,937.76 × 50,669.04
  4. Step 4: Simplify right side
    77,511.12x = 5,418,433,638.95
  5. Step 5: Solve for x
    x = 5,418,433,638.95/77,511.12
  6. Step 6: Final answer
    x = 69,905.24

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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.