Home / 56,347.12-77,770.56-38,491.48

Finding the Fourth Proportional to 56,347.12, 77,770.56 and 38,491.48

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Solution

The fourth proportional to 56,347.12, 77,770.56 and 38,491.48 is: 53,126.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,347.12 : 77,770.56 = 38,491.48 : x
  2. Step 2: Convert to fraction form
    56,347.12/77,770.56 = 38,491.48/x
  3. Step 3: Cross multiply
    56,347.12x = 77,770.56 × 38,491.48
  4. Step 4: Simplify right side
    56,347.12x = 2,993,503,954.83
  5. Step 5: Solve for x
    x = 2,993,503,954.83/56,347.12
  6. Step 6: Final answer
    x = 53,126.12

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1.5x scale

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.