Home / 92,719.35-139,032.45-45,338.13

Finding the Fourth Proportional to 92,719.35, 139,032.45 and 45,338.13

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Solution

The fourth proportional to 92,719.35, 139,032.45 and 45,338.13 is: 67,984.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,719.35 : 139,032.45 = 45,338.13 : x
  2. Step 2: Convert to fraction form
    92,719.35/139,032.45 = 45,338.13/x
  3. Step 3: Cross multiply
    92,719.35x = 139,032.45 × 45,338.13
  4. Step 4: Simplify right side
    92,719.35x = 6,303,471,292.32
  5. Step 5: Solve for x
    x = 6,303,471,292.32/92,719.35
  6. Step 6: Final answer
    x = 67,984.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.