Home / 65,966.44-90,971.94-42,108.52

Finding the Fourth Proportional to 65,966.44, 90,971.94 and 42,108.52

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Solution

The fourth proportional to 65,966.44, 90,971.94 and 42,108.52 is: 58,070.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,966.44 : 90,971.94 = 42,108.52 : x
  2. Step 2: Convert to fraction form
    65,966.44/90,971.94 = 42,108.52/x
  3. Step 3: Cross multiply
    65,966.44x = 90,971.94 × 42,108.52
  4. Step 4: Simplify right side
    65,966.44x = 3,830,693,754.93
  5. Step 5: Solve for x
    x = 3,830,693,754.93/65,966.44
  6. Step 6: Final answer
    x = 58,070.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.