Home / 85,089.74-117,434.86-48,805.34

Finding the Fourth Proportional to 85,089.74, 117,434.86 and 48,805.34

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Solution

The fourth proportional to 85,089.74, 117,434.86 and 48,805.34 is: 67,357.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,089.74 : 117,434.86 = 48,805.34 : x
  2. Step 2: Convert to fraction form
    85,089.74/117,434.86 = 48,805.34/x
  3. Step 3: Cross multiply
    85,089.74x = 117,434.86 × 48,805.34
  4. Step 4: Simplify right side
    85,089.74x = 5,731,448,270.15
  5. Step 5: Solve for x
    x = 5,731,448,270.15/85,089.74
  6. Step 6: Final answer
    x = 67,357.69

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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.