Home / 65,729.75-90,711.80-37,435.43

Finding the Fourth Proportional to 65,729.75, 90,711.80 and 37,435.43

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Solution

The fourth proportional to 65,729.75, 90,711.80 and 37,435.43 is: 51,663.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,729.75 : 90,711.80 = 37,435.43 : x
  2. Step 2: Convert to fraction form
    65,729.75/90,711.80 = 37,435.43/x
  3. Step 3: Cross multiply
    65,729.75x = 90,711.80 × 37,435.43
  4. Step 4: Simplify right side
    65,729.75x = 3,395,834,598.34
  5. Step 5: Solve for x
    x = 3,395,834,598.34/65,729.75
  6. Step 6: Final answer
    x = 51,663.59

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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.