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Finding the Fourth Proportional to 64,300.57, 96,598.68 and 45,368.78

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Solution

The fourth proportional to 64,300.57, 96,598.68 and 45,368.78 is: 68,157.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,300.57 : 96,598.68 = 45,368.78 : x
  2. Step 2: Convert to fraction form
    64,300.57/96,598.68 = 45,368.78/x
  3. Step 3: Cross multiply
    64,300.57x = 96,598.68 × 45,368.78
  4. Step 4: Simplify right side
    64,300.57x = 4,382,563,608.08
  5. Step 5: Solve for x
    x = 4,382,563,608.08/64,300.57
  6. Step 6: Final answer
    x = 68,157.46

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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.