Home / 85,552.20-128,328.30-23,222.70

Finding the Fourth Proportional to 85,552.20, 128,328.30 and 23,222.70

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Solution

The fourth proportional to 85,552.20, 128,328.30 and 23,222.70 is: 34,834.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,552.20 : 128,328.30 = 23,222.70 : x
  2. Step 2: Convert to fraction form
    85,552.20/128,328.30 = 23,222.70/x
  3. Step 3: Cross multiply
    85,552.20x = 128,328.30 × 23,222.70
  4. Step 4: Simplify right side
    85,552.20x = 2,980,129,612.41
  5. Step 5: Solve for x
    x = 2,980,129,612.41/85,552.20
  6. Step 6: Final answer
    x = 34,834.05

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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.