Home / 65,718.08-90,690.84-37,423.76

Finding the Fourth Proportional to 65,718.08, 90,690.84 and 37,423.76

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Solution

The fourth proportional to 65,718.08, 90,690.84 and 37,423.76 is: 51,644.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,718.08 : 90,690.84 = 37,423.76 : x
  2. Step 2: Convert to fraction form
    65,718.08/90,690.84 = 37,423.76/x
  3. Step 3: Cross multiply
    65,718.08x = 90,690.84 × 37,423.76
  4. Step 4: Simplify right side
    65,718.08x = 3,393,992,230.36
  5. Step 5: Solve for x
    x = 3,393,992,230.36/65,718.08
  6. Step 6: Final answer
    x = 51,644.73

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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.