Home / 65,429.60-90,293.28-37,135.76

Finding the Fourth Proportional to 65,429.60, 90,293.28 and 37,135.76

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Solution

The fourth proportional to 65,429.60, 90,293.28 and 37,135.76 is: 51,247.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,429.60 : 90,293.28 = 37,135.76 : x
  2. Step 2: Convert to fraction form
    65,429.60/90,293.28 = 37,135.76/x
  3. Step 3: Cross multiply
    65,429.60x = 90,293.28 × 37,135.76
  4. Step 4: Simplify right side
    65,429.60x = 3,353,109,575.69
  5. Step 5: Solve for x
    x = 3,353,109,575.69/65,429.60
  6. Step 6: Final answer
    x = 51,247.59

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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.