Home / 65,933.07-90,985.75-38,708.71

Finding the Fourth Proportional to 65,933.07, 90,985.75 and 38,708.71

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Solution

The fourth proportional to 65,933.07, 90,985.75 and 38,708.71 is: 53,416.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,933.07 : 90,985.75 = 38,708.71 : x
  2. Step 2: Convert to fraction form
    65,933.07/90,985.75 = 38,708.71/x
  3. Step 3: Cross multiply
    65,933.07x = 90,985.75 × 38,708.71
  4. Step 4: Simplify right side
    65,933.07x = 3,521,941,010.88
  5. Step 5: Solve for x
    x = 3,521,941,010.88/65,933.07
  6. Step 6: Final answer
    x = 53,416.91

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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.