Home / 72,384.06-108,558.93-40,808.10

Finding the Fourth Proportional to 72,384.06, 108,558.93 and 40,808.10

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Solution

The fourth proportional to 72,384.06, 108,558.93 and 40,808.10 is: 61,202.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,384.06 : 108,558.93 = 40,808.10 : x
  2. Step 2: Convert to fraction form
    72,384.06/108,558.93 = 40,808.10/x
  3. Step 3: Cross multiply
    72,384.06x = 108,558.93 × 40,808.10
  4. Step 4: Simplify right side
    72,384.06x = 4,430,083,671.33
  5. Step 5: Solve for x
    x = 4,430,083,671.33/72,384.06
  6. Step 6: Final answer
    x = 61,202.48

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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.