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Finding the Fourth Proportional to 64,516.70, 96,775.05 and 40,897.10

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Solution

The fourth proportional to 64,516.70, 96,775.05 and 40,897.10 is: 61,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,516.70 : 96,775.05 = 40,897.10 : x
  2. Step 2: Convert to fraction form
    64,516.70/96,775.05 = 40,897.10/x
  3. Step 3: Cross multiply
    64,516.70x = 96,775.05 × 40,897.10
  4. Step 4: Simplify right side
    64,516.70x = 3,957,818,897.36
  5. Step 5: Solve for x
    x = 3,957,818,897.36/64,516.70
  6. Step 6: Final answer
    x = 61,345.65

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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.