Home / 75,729.55-104,502.57-45,509.26

Finding the Fourth Proportional to 75,729.55, 104,502.57 and 45,509.26

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Solution

The fourth proportional to 75,729.55, 104,502.57 and 45,509.26 is: 62,800.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,729.55 : 104,502.57 = 45,509.26 : x
  2. Step 2: Convert to fraction form
    75,729.55/104,502.57 = 45,509.26/x
  3. Step 3: Cross multiply
    75,729.55x = 104,502.57 × 45,509.26
  4. Step 4: Simplify right side
    75,729.55x = 4,755,834,628.80
  5. Step 5: Solve for x
    x = 4,755,834,628.80/75,729.55
  6. Step 6: Final answer
    x = 62,800.25

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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.