Home / 85,164.12-117,575.42-59,018.40

Finding the Fourth Proportional to 85,164.12, 117,575.42 and 59,018.40

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Solution

The fourth proportional to 85,164.12, 117,575.42 and 59,018.40 is: 81,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,164.12 : 117,575.42 = 59,018.40 : x
  2. Step 2: Convert to fraction form
    85,164.12/117,575.42 = 59,018.40/x
  3. Step 3: Cross multiply
    85,164.12x = 117,575.42 × 59,018.40
  4. Step 4: Simplify right side
    85,164.12x = 6,939,112,872.64
  5. Step 5: Solve for x
    x = 6,939,112,872.64/85,164.12
  6. Step 6: Final answer
    x = 81,479.30

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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.