Home / 51,306.18-70,802.82-30,085.80

Finding the Fourth Proportional to 51,306.18, 70,802.82 and 30,085.80

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Solution

The fourth proportional to 51,306.18, 70,802.82 and 30,085.80 is: 41,518.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,306.18 : 70,802.82 = 30,085.80 : x
  2. Step 2: Convert to fraction form
    51,306.18/70,802.82 = 30,085.80/x
  3. Step 3: Cross multiply
    51,306.18x = 70,802.82 × 30,085.80
  4. Step 4: Simplify right side
    51,306.18x = 2,130,159,481.96
  5. Step 5: Solve for x
    x = 2,130,159,481.96/51,306.18
  6. Step 6: Final answer
    x = 41,518.57

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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.