Home / 65,529.81-90,442.78-38,670.41

Finding the Fourth Proportional to 65,529.81, 90,442.78 and 38,670.41

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Solution

The fourth proportional to 65,529.81, 90,442.78 and 38,670.41 is: 53,372.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,529.81 : 90,442.78 = 38,670.41 : x
  2. Step 2: Convert to fraction form
    65,529.81/90,442.78 = 38,670.41/x
  3. Step 3: Cross multiply
    65,529.81x = 90,442.78 × 38,670.41
  4. Step 4: Simplify right side
    65,529.81x = 3,497,459,513.57
  5. Step 5: Solve for x
    x = 3,497,459,513.57/65,529.81
  6. Step 6: Final answer
    x = 53,372.04

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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.