Home / 42,749.32-64,123.98-11,583.76

Finding the Fourth Proportional to 42,749.32, 64,123.98 and 11,583.76

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Solution

The fourth proportional to 42,749.32, 64,123.98 and 11,583.76 is: 17,375.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,749.32 : 64,123.98 = 11,583.76 : x
  2. Step 2: Convert to fraction form
    42,749.32/64,123.98 = 11,583.76/x
  3. Step 3: Cross multiply
    42,749.32x = 64,123.98 × 11,583.76
  4. Step 4: Simplify right side
    42,749.32x = 742,796,794.56
  5. Step 5: Solve for x
    x = 742,796,794.56/42,749.32
  6. Step 6: Final answer
    x = 17,375.64

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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.