Home / 77,341.55-106,729.56-45,074.12

Finding the Fourth Proportional to 77,341.55, 106,729.56 and 45,074.12

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Solution

The fourth proportional to 77,341.55, 106,729.56 and 45,074.12 is: 62,201.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,341.55 : 106,729.56 = 45,074.12 : x
  2. Step 2: Convert to fraction form
    77,341.55/106,729.56 = 45,074.12/x
  3. Step 3: Cross multiply
    77,341.55x = 106,729.56 × 45,074.12
  4. Step 4: Simplify right side
    77,341.55x = 4,810,741,261.81
  5. Step 5: Solve for x
    x = 4,810,741,261.81/77,341.55
  6. Step 6: Final answer
    x = 62,201.25

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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.