Home / 65,440.60-90,308.46-37,146.76

Finding the Fourth Proportional to 65,440.60, 90,308.46 and 37,146.76

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Solution

The fourth proportional to 65,440.60, 90,308.46 and 37,146.76 is: 51,262.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,440.60 : 90,308.46 = 37,146.76 : x
  2. Step 2: Convert to fraction form
    65,440.60/90,308.46 = 37,146.76/x
  3. Step 3: Cross multiply
    65,440.60x = 90,308.46 × 37,146.76
  4. Step 4: Simplify right side
    65,440.60x = 3,354,666,689.59
  5. Step 5: Solve for x
    x = 3,354,666,689.59/65,440.60
  6. Step 6: Final answer
    x = 51,262.77

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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.