Home / 74,141.46-102,322.58-42,315.17

Finding the Fourth Proportional to 74,141.46, 102,322.58 and 42,315.17

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Solution

The fourth proportional to 74,141.46, 102,322.58 and 42,315.17 is: 58,399.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,141.46 : 102,322.58 = 42,315.17 : x
  2. Step 2: Convert to fraction form
    74,141.46/102,322.58 = 42,315.17/x
  3. Step 3: Cross multiply
    74,141.46x = 102,322.58 × 42,315.17
  4. Step 4: Simplify right side
    74,141.46x = 4,329,796,644.35
  5. Step 5: Solve for x
    x = 4,329,796,644.35/74,141.46
  6. Step 6: Final answer
    x = 58,399.13

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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.