Home / 78,957.02-108,950.19-50,700.98

Finding the Fourth Proportional to 78,957.02, 108,950.19 and 50,700.98

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Solution

The fourth proportional to 78,957.02, 108,950.19 and 50,700.98 is: 69,960.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,957.02 : 108,950.19 = 50,700.98 : x
  2. Step 2: Convert to fraction form
    78,957.02/108,950.19 = 50,700.98/x
  3. Step 3: Cross multiply
    78,957.02x = 108,950.19 × 50,700.98
  4. Step 4: Simplify right side
    78,957.02x = 5,523,881,404.19
  5. Step 5: Solve for x
    x = 5,523,881,404.19/78,957.02
  6. Step 6: Final answer
    x = 69,960.61

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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.