Home / 52,703.76-78,928.96-30,146.08

Finding the Fourth Proportional to 52,703.76, 78,928.96 and 30,146.08

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Solution

The fourth proportional to 52,703.76, 78,928.96 and 30,146.08 is: 45,146.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,703.76 : 78,928.96 = 30,146.08 : x
  2. Step 2: Convert to fraction form
    52,703.76/78,928.96 = 30,146.08/x
  3. Step 3: Cross multiply
    52,703.76x = 78,928.96 × 30,146.08
  4. Step 4: Simplify right side
    52,703.76x = 2,379,398,742.48
  5. Step 5: Solve for x
    x = 2,379,398,742.48/52,703.76
  6. Step 6: Final answer
    x = 45,146.66

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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.