Home / 69,840.55-96,378.11-38,008.76

Finding the Fourth Proportional to 69,840.55, 96,378.11 and 38,008.76

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Solution

The fourth proportional to 69,840.55, 96,378.11 and 38,008.76 is: 52,451.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,840.55 : 96,378.11 = 38,008.76 : x
  2. Step 2: Convert to fraction form
    69,840.55/96,378.11 = 38,008.76/x
  3. Step 3: Cross multiply
    69,840.55x = 96,378.11 × 38,008.76
  4. Step 4: Simplify right side
    69,840.55x = 3,663,212,598.17
  5. Step 5: Solve for x
    x = 3,663,212,598.17/69,840.55
  6. Step 6: Final answer
    x = 52,451.09

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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.