Home / 52,277.19-78,420.03-31,360.15

Finding the Fourth Proportional to 52,277.19, 78,420.03 and 31,360.15

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Solution

The fourth proportional to 52,277.19, 78,420.03 and 31,360.15 is: 47,042.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,277.19 : 78,420.03 = 31,360.15 : x
  2. Step 2: Convert to fraction form
    52,277.19/78,420.03 = 31,360.15/x
  3. Step 3: Cross multiply
    52,277.19x = 78,420.03 × 31,360.15
  4. Step 4: Simplify right side
    52,277.19x = 2,459,263,903.80
  5. Step 5: Solve for x
    x = 2,459,263,903.80/52,277.19
  6. Step 6: Final answer
    x = 47,042.77

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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.