Home / 61,138.05-84,334.69-38,441.08

Finding the Fourth Proportional to 61,138.05, 84,334.69 and 38,441.08

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Solution

The fourth proportional to 61,138.05, 84,334.69 and 38,441.08 is: 53,026.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,138.05 : 84,334.69 = 38,441.08 : x
  2. Step 2: Convert to fraction form
    61,138.05/84,334.69 = 38,441.08/x
  3. Step 3: Cross multiply
    61,138.05x = 84,334.69 × 38,441.08
  4. Step 4: Simplify right side
    61,138.05x = 3,241,915,951.19
  5. Step 5: Solve for x
    x = 3,241,915,951.19/61,138.05
  6. Step 6: Final answer
    x = 53,026.16

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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.