Home / 82,436.46-113,638.28-64,500.32

Finding the Fourth Proportional to 82,436.46, 113,638.28 and 64,500.32

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Solution

The fourth proportional to 82,436.46, 113,638.28 and 64,500.32 is: 88,913.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,436.46 : 113,638.28 = 64,500.32 : x
  2. Step 2: Convert to fraction form
    82,436.46/113,638.28 = 64,500.32/x
  3. Step 3: Cross multiply
    82,436.46x = 113,638.28 × 64,500.32
  4. Step 4: Simplify right side
    82,436.46x = 7,329,705,424.25
  5. Step 5: Solve for x
    x = 7,329,705,424.25/82,436.46
  6. Step 6: Final answer
    x = 88,913.39

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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.