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Finding the Fourth Proportional to 40,700.70, 61,041.83 and 14,405.45

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Solution

The fourth proportional to 40,700.70, 61,041.83 and 14,405.45 is: 21,604.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,700.70 : 61,041.83 = 14,405.45 : x
  2. Step 2: Convert to fraction form
    40,700.70/61,041.83 = 14,405.45/x
  3. Step 3: Cross multiply
    40,700.70x = 61,041.83 × 14,405.45
  4. Step 4: Simplify right side
    40,700.70x = 879,334,652.74
  5. Step 5: Solve for x
    x = 879,334,652.74/40,700.70
  6. Step 6: Final answer
    x = 21,604.90

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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.