Home / 56,910.60-78,526.26-48,940.20

Finding the Fourth Proportional to 56,910.60, 78,526.26 and 48,940.20

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Solution

The fourth proportional to 56,910.60, 78,526.26 and 48,940.20 is: 67,528.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,910.60 : 78,526.26 = 48,940.20 : x
  2. Step 2: Convert to fraction form
    56,910.60/78,526.26 = 48,940.20/x
  3. Step 3: Cross multiply
    56,910.60x = 78,526.26 × 48,940.20
  4. Step 4: Simplify right side
    56,910.60x = 3,843,090,869.65
  5. Step 5: Solve for x
    x = 3,843,090,869.65/56,910.60
  6. Step 6: Final answer
    x = 67,528.56

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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.