Home / 85,444.88-117,919.40-47,719.13

Finding the Fourth Proportional to 85,444.88, 117,919.40 and 47,719.13

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Solution

The fourth proportional to 85,444.88, 117,919.40 and 47,719.13 is: 65,855.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,444.88 : 117,919.40 = 47,719.13 : x
  2. Step 2: Convert to fraction form
    85,444.88/117,919.40 = 47,719.13/x
  3. Step 3: Cross multiply
    85,444.88x = 117,919.40 × 47,719.13
  4. Step 4: Simplify right side
    85,444.88x = 5,627,010,349.93
  5. Step 5: Solve for x
    x = 5,627,010,349.93/85,444.88
  6. Step 6: Final answer
    x = 65,855.45

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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.