Home / 86,647.47-119,581.55-52,648.12

Finding the Fourth Proportional to 86,647.47, 119,581.55 and 52,648.12

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Solution

The fourth proportional to 86,647.47, 119,581.55 and 52,648.12 is: 72,659.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,647.47 : 119,581.55 = 52,648.12 : x
  2. Step 2: Convert to fraction form
    86,647.47/119,581.55 = 52,648.12/x
  3. Step 3: Cross multiply
    86,647.47x = 119,581.55 × 52,648.12
  4. Step 4: Simplify right side
    86,647.47x = 6,295,743,794.19
  5. Step 5: Solve for x
    x = 6,295,743,794.19/86,647.47
  6. Step 6: Final answer
    x = 72,659.29

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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.