Home / 65,440.88-90,313.08-37,148.42

Finding the Fourth Proportional to 65,440.88, 90,313.08 and 37,148.42

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Solution

The fourth proportional to 65,440.88, 90,313.08 and 37,148.42 is: 51,267.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,440.88 : 90,313.08 = 37,148.42 : x
  2. Step 2: Convert to fraction form
    65,440.88/90,313.08 = 37,148.42/x
  3. Step 3: Cross multiply
    65,440.88x = 90,313.08 × 37,148.42
  4. Step 4: Simplify right side
    65,440.88x = 3,354,988,227.33
  5. Step 5: Solve for x
    x = 3,354,988,227.33/65,440.88
  6. Step 6: Final answer
    x = 51,267.47

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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.