Home / 64,780.32-96,951-39,836.18

Finding the Fourth Proportional to 64,780.32, 96,951 and 39,836.18

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Solution

The fourth proportional to 64,780.32, 96,951 and 39,836.18 is: 59,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,780.32 : 96,951 = 39,836.18 : x
  2. Step 2: Convert to fraction form
    64,780.32/96,951 = 39,836.18/x
  3. Step 3: Cross multiply
    64,780.32x = 96,951 × 39,836.18
  4. Step 4: Simplify right side
    64,780.32x = 3,862,157,487.18
  5. Step 5: Solve for x
    x = 3,862,157,487.18/64,780.32
  6. Step 6: Final answer
    x = 59,619.30

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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.