Home / 52,211.27-72,018.78-30,975.50

Finding the Fourth Proportional to 52,211.27, 72,018.78 and 30,975.50

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Solution

The fourth proportional to 52,211.27, 72,018.78 and 30,975.50 is: 42,726.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,211.27 : 72,018.78 = 30,975.50 : x
  2. Step 2: Convert to fraction form
    52,211.27/72,018.78 = 30,975.50/x
  3. Step 3: Cross multiply
    52,211.27x = 72,018.78 × 30,975.50
  4. Step 4: Simplify right side
    52,211.27x = 2,230,817,719.89
  5. Step 5: Solve for x
    x = 2,230,817,719.89/52,211.27
  6. Step 6: Final answer
    x = 42,726.75

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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.