Home / 64,710.15-97,065.27-20,340.78

Finding the Fourth Proportional to 64,710.15, 97,065.27 and 20,340.78

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Solution

The fourth proportional to 64,710.15, 97,065.27 and 20,340.78 is: 30,511.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,710.15 : 97,065.27 = 20,340.78 : x
  2. Step 2: Convert to fraction form
    64,710.15/97,065.27 = 20,340.78/x
  3. Step 3: Cross multiply
    64,710.15x = 97,065.27 × 20,340.78
  4. Step 4: Simplify right side
    64,710.15x = 1,974,383,302.71
  5. Step 5: Solve for x
    x = 1,974,383,302.71/64,710.15
  6. Step 6: Final answer
    x = 30,511.18

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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.