Home / 72,778.02-100,433.61-40,946.82

Finding the Fourth Proportional to 72,778.02, 100,433.61 and 40,946.82

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Solution

The fourth proportional to 72,778.02, 100,433.61 and 40,946.82 is: 56,506.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,778.02 : 100,433.61 = 40,946.82 : x
  2. Step 2: Convert to fraction form
    72,778.02/100,433.61 = 40,946.82/x
  3. Step 3: Cross multiply
    72,778.02x = 100,433.61 × 40,946.82
  4. Step 4: Simplify right side
    72,778.02x = 4,112,436,950.62
  5. Step 5: Solve for x
    x = 4,112,436,950.62/72,778.02
  6. Step 6: Final answer
    x = 56,506.58

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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.