Home / 65,274.35-90,071.48-38,425.28

Finding the Fourth Proportional to 65,274.35, 90,071.48 and 38,425.28

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Solution

The fourth proportional to 65,274.35, 90,071.48 and 38,425.28 is: 53,022.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,274.35 : 90,071.48 = 38,425.28 : x
  2. Step 2: Convert to fraction form
    65,274.35/90,071.48 = 38,425.28/x
  3. Step 3: Cross multiply
    65,274.35x = 90,071.48 × 38,425.28
  4. Step 4: Simplify right side
    65,274.35x = 3,461,021,646.89
  5. Step 5: Solve for x
    x = 3,461,021,646.89/65,274.35
  6. Step 6: Final answer
    x = 53,022.69

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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.