Home / 72,683.92-100,281.24-42,447.36

Finding the Fourth Proportional to 72,683.92, 100,281.24 and 42,447.36

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Solution

The fourth proportional to 72,683.92, 100,281.24 and 42,447.36 is: 58,564.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,683.92 : 100,281.24 = 42,447.36 : x
  2. Step 2: Convert to fraction form
    72,683.92/100,281.24 = 42,447.36/x
  3. Step 3: Cross multiply
    72,683.92x = 100,281.24 × 42,447.36
  4. Step 4: Simplify right side
    72,683.92x = 4,256,673,895.53
  5. Step 5: Solve for x
    x = 4,256,673,895.53/72,683.92
  6. Step 6: Final answer
    x = 58,564.18

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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.