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Finding the Fourth Proportional to 56,501.74, 84,766.85 and 39,894.21

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Solution

The fourth proportional to 56,501.74, 84,766.85 and 39,894.21 is: 59,851.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,501.74 : 84,766.85 = 39,894.21 : x
  2. Step 2: Convert to fraction form
    56,501.74/84,766.85 = 39,894.21/x
  3. Step 3: Cross multiply
    56,501.74x = 84,766.85 × 39,894.21
  4. Step 4: Simplify right side
    56,501.74x = 3,381,706,514.94
  5. Step 5: Solve for x
    x = 3,381,706,514.94/56,501.74
  6. Step 6: Final answer
    x = 59,851.37

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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.