Home / 81,384.04-112,319.94-49,557.52

Finding the Fourth Proportional to 81,384.04, 112,319.94 and 49,557.52

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Solution

The fourth proportional to 81,384.04, 112,319.94 and 49,557.52 is: 68,395.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,384.04 : 112,319.94 = 49,557.52 : x
  2. Step 2: Convert to fraction form
    81,384.04/112,319.94 = 49,557.52/x
  3. Step 3: Cross multiply
    81,384.04x = 112,319.94 × 49,557.52
  4. Step 4: Simplify right side
    81,384.04x = 5,566,297,672.95
  5. Step 5: Solve for x
    x = 5,566,297,672.95/81,384.04
  6. Step 6: Final answer
    x = 68,395.45

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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.