Home / 61,722.50-85,153.56-45,628.45

Finding the Fourth Proportional to 61,722.50, 85,153.56 and 45,628.45

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Solution

The fourth proportional to 61,722.50, 85,153.56 and 45,628.45 is: 62,949.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,722.50 : 85,153.56 = 45,628.45 : x
  2. Step 2: Convert to fraction form
    61,722.50/85,153.56 = 45,628.45/x
  3. Step 3: Cross multiply
    61,722.50x = 85,153.56 × 45,628.45
  4. Step 4: Simplify right side
    61,722.50x = 3,885,424,954.78
  5. Step 5: Solve for x
    x = 3,885,424,954.78/61,722.50
  6. Step 6: Final answer
    x = 62,949.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.