Home / 81,178.39-112,024.11-45,368.70

Finding the Fourth Proportional to 81,178.39, 112,024.11 and 45,368.70

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Solution

The fourth proportional to 81,178.39, 112,024.11 and 45,368.70 is: 62,607.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,178.39 : 112,024.11 = 45,368.70 : x
  2. Step 2: Convert to fraction form
    81,178.39/112,024.11 = 45,368.70/x
  3. Step 3: Cross multiply
    81,178.39x = 112,024.11 × 45,368.70
  4. Step 4: Simplify right side
    81,178.39x = 5,082,388,239.36
  5. Step 5: Solve for x
    x = 5,082,388,239.36/81,178.39
  6. Step 6: Final answer
    x = 62,607.65

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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.