Home / 56,728.20-85,124.70-39,210.60

Finding the Fourth Proportional to 56,728.20, 85,124.70 and 39,210.60

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Solution

The fourth proportional to 56,728.20, 85,124.70 and 39,210.60 is: 58,838.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,728.20 : 85,124.70 = 39,210.60 : x
  2. Step 2: Convert to fraction form
    56,728.20/85,124.70 = 39,210.60/x
  3. Step 3: Cross multiply
    56,728.20x = 85,124.70 × 39,210.60
  4. Step 4: Simplify right side
    56,728.20x = 3,337,790,561.82
  5. Step 5: Solve for x
    x = 3,337,790,561.82/56,728.20
  6. Step 6: Final answer
    x = 58,838.29

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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.