Home / 69,868.48-96,420-38,038.96

Finding the Fourth Proportional to 69,868.48, 96,420 and 38,038.96

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Solution

The fourth proportional to 69,868.48, 96,420 and 38,038.96 is: 52,494.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,868.48 : 96,420 = 38,038.96 : x
  2. Step 2: Convert to fraction form
    69,868.48/96,420 = 38,038.96/x
  3. Step 3: Cross multiply
    69,868.48x = 96,420 × 38,038.96
  4. Step 4: Simplify right side
    69,868.48x = 3,667,716,523.20
  5. Step 5: Solve for x
    x = 3,667,716,523.20/69,868.48
  6. Step 6: Final answer
    x = 52,494.58

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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.