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Finding the Fourth Proportional to 65,510.92, 90,404.52 and 36,830.71

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Solution

The fourth proportional to 65,510.92, 90,404.52 and 36,830.71 is: 50,826.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,510.92 : 90,404.52 = 36,830.71 : x
  2. Step 2: Convert to fraction form
    65,510.92/90,404.52 = 36,830.71/x
  3. Step 3: Cross multiply
    65,510.92x = 90,404.52 × 36,830.71
  4. Step 4: Simplify right side
    65,510.92x = 3,329,662,750.89
  5. Step 5: Solve for x
    x = 3,329,662,750.89/65,510.92
  6. Step 6: Final answer
    x = 50,826.07

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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.