Home / 69,985.20-96,580.88-38,155.44

Finding the Fourth Proportional to 69,985.20, 96,580.88 and 38,155.44

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Solution

The fourth proportional to 69,985.20, 96,580.88 and 38,155.44 is: 52,655.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,985.20 : 96,580.88 = 38,155.44 : x
  2. Step 2: Convert to fraction form
    69,985.20/96,580.88 = 38,155.44/x
  3. Step 3: Cross multiply
    69,985.20x = 96,580.88 × 38,155.44
  4. Step 4: Simplify right side
    69,985.20x = 3,685,085,971.99
  5. Step 5: Solve for x
    x = 3,685,085,971.99/69,985.20
  6. Step 6: Final answer
    x = 52,655.22

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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.