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Finding the Fourth Proportional to 65,068.79, 97,601.36 and 20,698.20

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Solution

The fourth proportional to 65,068.79, 97,601.36 and 20,698.20 is: 31,046.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,068.79 : 97,601.36 = 20,698.20 : x
  2. Step 2: Convert to fraction form
    65,068.79/97,601.36 = 20,698.20/x
  3. Step 3: Cross multiply
    65,068.79x = 97,601.36 × 20,698.20
  4. Step 4: Simplify right side
    65,068.79x = 2,020,172,366.06
  5. Step 5: Solve for x
    x = 2,020,172,366.06/65,068.79
  6. Step 6: Final answer
    x = 31,046.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.