Home / 90,683.35-125,140.02-49,847.61

Finding the Fourth Proportional to 90,683.35, 125,140.02 and 49,847.61

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Solution

The fourth proportional to 90,683.35, 125,140.02 and 49,847.61 is: 68,788.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,683.35 : 125,140.02 = 49,847.61 : x
  2. Step 2: Convert to fraction form
    90,683.35/125,140.02 = 49,847.61/x
  3. Step 3: Cross multiply
    90,683.35x = 125,140.02 × 49,847.61
  4. Step 4: Simplify right side
    90,683.35x = 6,237,931,123.14
  5. Step 5: Solve for x
    x = 6,237,931,123.14/90,683.35
  6. Step 6: Final answer
    x = 68,788.06

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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.