Home / 66,071.56-99,142.62-31,011.52

Finding the Fourth Proportional to 66,071.56, 99,142.62 and 31,011.52

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Solution

The fourth proportional to 66,071.56, 99,142.62 and 31,011.52 is: 46,533.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,071.56 : 99,142.62 = 31,011.52 : x
  2. Step 2: Convert to fraction form
    66,071.56/99,142.62 = 31,011.52/x
  3. Step 3: Cross multiply
    66,071.56x = 99,142.62 × 31,011.52
  4. Step 4: Simplify right side
    66,071.56x = 3,074,563,342.98
  5. Step 5: Solve for x
    x = 3,074,563,342.98/66,071.56
  6. Step 6: Final answer
    x = 46,533.84

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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.