Home / 71,899.84-99,155.10-49,271.68

Finding the Fourth Proportional to 71,899.84, 99,155.10 and 49,271.68

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Solution

The fourth proportional to 71,899.84, 99,155.10 and 49,271.68 is: 67,949.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,899.84 : 99,155.10 = 49,271.68 : x
  2. Step 2: Convert to fraction form
    71,899.84/99,155.10 = 49,271.68/x
  3. Step 3: Cross multiply
    71,899.84x = 99,155.10 × 49,271.68
  4. Step 4: Simplify right side
    71,899.84x = 4,885,538,357.57
  5. Step 5: Solve for x
    x = 4,885,538,357.57/71,899.84
  6. Step 6: Final answer
    x = 67,949.22

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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.