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Finding the Fourth Proportional to 73,557.60, 110,303.68 and 20,955.20

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Solution

The fourth proportional to 73,557.60, 110,303.68 and 20,955.20 is: 31,423.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,557.60 : 110,303.68 = 20,955.20 : x
  2. Step 2: Convert to fraction form
    73,557.60/110,303.68 = 20,955.20/x
  3. Step 3: Cross multiply
    73,557.60x = 110,303.68 × 20,955.20
  4. Step 4: Simplify right side
    73,557.60x = 2,311,435,675.14
  5. Step 5: Solve for x
    x = 2,311,435,675.14/73,557.60
  6. Step 6: Final answer
    x = 31,423.48

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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.