Home / 47,986.40-66,242.48-30,998.93

Finding the Fourth Proportional to 47,986.40, 66,242.48 and 30,998.93

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Solution

The fourth proportional to 47,986.40, 66,242.48 and 30,998.93 is: 42,792.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,986.40 : 66,242.48 = 30,998.93 : x
  2. Step 2: Convert to fraction form
    47,986.40/66,242.48 = 30,998.93/x
  3. Step 3: Cross multiply
    47,986.40x = 66,242.48 × 30,998.93
  4. Step 4: Simplify right side
    47,986.40x = 2,053,446,011.16
  5. Step 5: Solve for x
    x = 2,053,446,011.16/47,986.40
  6. Step 6: Final answer
    x = 42,792.25

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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.