Home / 74,521.42-102,838.55-40,529.17

Finding the Fourth Proportional to 74,521.42, 102,838.55 and 40,529.17

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Solution

The fourth proportional to 74,521.42, 102,838.55 and 40,529.17 is: 55,929.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,521.42 : 102,838.55 = 40,529.17 : x
  2. Step 2: Convert to fraction form
    74,521.42/102,838.55 = 40,529.17/x
  3. Step 3: Cross multiply
    74,521.42x = 102,838.55 × 40,529.17
  4. Step 4: Simplify right side
    74,521.42x = 4,167,961,001.41
  5. Step 5: Solve for x
    x = 4,167,961,001.41/74,521.42
  6. Step 6: Final answer
    x = 55,929.71

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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.