Home / 60,401.12-90,579-20,948.72

Finding the Fourth Proportional to 60,401.12, 90,579 and 20,948.72

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Solution

The fourth proportional to 60,401.12, 90,579 and 20,948.72 is: 31,415.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,401.12 : 90,579 = 20,948.72 : x
  2. Step 2: Convert to fraction form
    60,401.12/90,579 = 20,948.72/x
  3. Step 3: Cross multiply
    60,401.12x = 90,579 × 20,948.72
  4. Step 4: Simplify right side
    60,401.12x = 1,897,514,108.88
  5. Step 5: Solve for x
    x = 1,897,514,108.88/60,401.12
  6. Step 6: Final answer
    x = 31,415.21

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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.