Home / 75,857.32-104,679.28-42,316.84

Finding the Fourth Proportional to 75,857.32, 104,679.28 and 42,316.84

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Solution

The fourth proportional to 75,857.32, 104,679.28 and 42,316.84 is: 58,395.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,857.32 : 104,679.28 = 42,316.84 : x
  2. Step 2: Convert to fraction form
    75,857.32/104,679.28 = 42,316.84/x
  3. Step 3: Cross multiply
    75,857.32x = 104,679.28 × 42,316.84
  4. Step 4: Simplify right side
    75,857.32x = 4,429,696,343.08
  5. Step 5: Solve for x
    x = 4,429,696,343.08/75,857.32
  6. Step 6: Final answer
    x = 58,395.11

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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.