Home / 53,029.12-79,531.28-23,430.80

Finding the Fourth Proportional to 53,029.12, 79,531.28 and 23,430.80

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Solution

The fourth proportional to 53,029.12, 79,531.28 and 23,430.80 is: 35,140.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,029.12 : 79,531.28 = 23,430.80 : x
  2. Step 2: Convert to fraction form
    53,029.12/79,531.28 = 23,430.80/x
  3. Step 3: Cross multiply
    53,029.12x = 79,531.28 × 23,430.80
  4. Step 4: Simplify right side
    53,029.12x = 1,863,481,515.42
  5. Step 5: Solve for x
    x = 1,863,481,515.42/53,029.12
  6. Step 6: Final answer
    x = 35,140.72

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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.