Home / 66,344.40-99,430.20-30,801.60

Finding the Fourth Proportional to 66,344.40, 99,430.20 and 30,801.60

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Solution

The fourth proportional to 66,344.40, 99,430.20 and 30,801.60 is: 46,162.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,344.40 : 99,430.20 = 30,801.60 : x
  2. Step 2: Convert to fraction form
    66,344.40/99,430.20 = 30,801.60/x
  3. Step 3: Cross multiply
    66,344.40x = 99,430.20 × 30,801.60
  4. Step 4: Simplify right side
    66,344.40x = 3,062,609,248.32
  5. Step 5: Solve for x
    x = 3,062,609,248.32/66,344.40
  6. Step 6: Final answer
    x = 46,162.29

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1.5x scale

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.