Home / 66,239.82-99,312.75-31,160.34

Finding the Fourth Proportional to 66,239.82, 99,312.75 and 31,160.34

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Solution

The fourth proportional to 66,239.82, 99,312.75 and 31,160.34 is: 46,718.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,239.82 : 99,312.75 = 31,160.34 : x
  2. Step 2: Convert to fraction form
    66,239.82/99,312.75 = 31,160.34/x
  3. Step 3: Cross multiply
    66,239.82x = 99,312.75 × 31,160.34
  4. Step 4: Simplify right side
    66,239.82x = 3,094,619,056.34
  5. Step 5: Solve for x
    x = 3,094,619,056.34/66,239.82
  6. Step 6: Final answer
    x = 46,718.41

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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.