Home / 51,929.12-77,862.48-20,301.50

Finding the Fourth Proportional to 51,929.12, 77,862.48 and 20,301.50

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Solution

The fourth proportional to 51,929.12, 77,862.48 and 20,301.50 is: 30,440.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,929.12 : 77,862.48 = 20,301.50 : x
  2. Step 2: Convert to fraction form
    51,929.12/77,862.48 = 20,301.50/x
  3. Step 3: Cross multiply
    51,929.12x = 77,862.48 × 20,301.50
  4. Step 4: Simplify right side
    51,929.12x = 1,580,725,370.44
  5. Step 5: Solve for x
    x = 1,580,725,370.44/51,929.12
  6. Step 6: Final answer
    x = 30,440.06

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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.