Home / 48,666.81-67,125.63-31,639.65

Finding the Fourth Proportional to 48,666.81, 67,125.63 and 31,639.65

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Solution

The fourth proportional to 48,666.81, 67,125.63 and 31,639.65 is: 43,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,666.81 : 67,125.63 = 31,639.65 : x
  2. Step 2: Convert to fraction form
    48,666.81/67,125.63 = 31,639.65/x
  3. Step 3: Cross multiply
    48,666.81x = 67,125.63 × 31,639.65
  4. Step 4: Simplify right side
    48,666.81x = 2,123,831,439.23
  5. Step 5: Solve for x
    x = 2,123,831,439.23/48,666.81
  6. Step 6: Final answer
    x = 43,640.24

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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.