Home / 52,208.20-78,312.30-30,010.15

Finding the Fourth Proportional to 52,208.20, 78,312.30 and 30,010.15

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Solution

The fourth proportional to 52,208.20, 78,312.30 and 30,010.15 is: 45,015.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,208.20 : 78,312.30 = 30,010.15 : x
  2. Step 2: Convert to fraction form
    52,208.20/78,312.30 = 30,010.15/x
  3. Step 3: Cross multiply
    52,208.20x = 78,312.30 × 30,010.15
  4. Step 4: Simplify right side
    52,208.20x = 2,350,163,869.85
  5. Step 5: Solve for x
    x = 2,350,163,869.85/52,208.20
  6. Step 6: Final answer
    x = 45,015.23

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1.5x scale

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.