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Finding the Fourth Proportional to 64,437.60, 88,916.40 and 38,959.32

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Solution

The fourth proportional to 64,437.60, 88,916.40 and 38,959.32 is: 53,759.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,437.60 : 88,916.40 = 38,959.32 : x
  2. Step 2: Convert to fraction form
    64,437.60/88,916.40 = 38,959.32/x
  3. Step 3: Cross multiply
    64,437.60x = 88,916.40 × 38,959.32
  4. Step 4: Simplify right side
    64,437.60x = 3,464,122,480.85
  5. Step 5: Solve for x
    x = 3,464,122,480.85/64,437.60
  6. Step 6: Final answer
    x = 53,759.33

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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.