Home / 86,799.40-130,166.70-30,617.80

Finding the Fourth Proportional to 86,799.40, 130,166.70 and 30,617.80

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Solution

The fourth proportional to 86,799.40, 130,166.70 and 30,617.80 is: 45,915.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,799.40 : 130,166.70 = 30,617.80 : x
  2. Step 2: Convert to fraction form
    86,799.40/130,166.70 = 30,617.80/x
  3. Step 3: Cross multiply
    86,799.40x = 130,166.70 × 30,617.80
  4. Step 4: Simplify right side
    86,799.40x = 3,985,417,987.26
  5. Step 5: Solve for x
    x = 3,985,417,987.26/86,799.40
  6. Step 6: Final answer
    x = 45,915.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.