Home / 74,319.66-102,560.85-40,328.28

Finding the Fourth Proportional to 74,319.66, 102,560.85 and 40,328.28

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Solution

The fourth proportional to 74,319.66, 102,560.85 and 40,328.28 is: 55,652.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,319.66 : 102,560.85 = 40,328.28 : x
  2. Step 2: Convert to fraction form
    74,319.66/102,560.85 = 40,328.28/x
  3. Step 3: Cross multiply
    74,319.66x = 102,560.85 × 40,328.28
  4. Step 4: Simplify right side
    74,319.66x = 4,136,102,675.84
  5. Step 5: Solve for x
    x = 4,136,102,675.84/74,319.66
  6. Step 6: Final answer
    x = 55,652.87

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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.