Home / 48,638.04-67,133.24-31,688.80

Finding the Fourth Proportional to 48,638.04, 67,133.24 and 31,688.80

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Solution

The fourth proportional to 48,638.04, 67,133.24 and 31,688.80 is: 43,738.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,638.04 : 67,133.24 = 31,688.80 : x
  2. Step 2: Convert to fraction form
    48,638.04/67,133.24 = 31,688.80/x
  3. Step 3: Cross multiply
    48,638.04x = 67,133.24 × 31,688.80
  4. Step 4: Simplify right side
    48,638.04x = 2,127,371,815.71
  5. Step 5: Solve for x
    x = 2,127,371,815.71/48,638.04
  6. Step 6: Final answer
    x = 43,738.85

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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.