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Finding the Fourth Proportional to 64,283.64, 88,719.35 and 38,804.64

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Solution

The fourth proportional to 64,283.64, 88,719.35 and 38,804.64 is: 53,555.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,283.64 : 88,719.35 = 38,804.64 : x
  2. Step 2: Convert to fraction form
    64,283.64/88,719.35 = 38,804.64/x
  3. Step 3: Cross multiply
    64,283.64x = 88,719.35 × 38,804.64
  4. Step 4: Simplify right side
    64,283.64x = 3,442,722,437.78
  5. Step 5: Solve for x
    x = 3,442,722,437.78/64,283.64
  6. Step 6: Final answer
    x = 53,555.19

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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.