Home / 65,824.86-90,824.88-38,953.92

Finding the Fourth Proportional to 65,824.86, 90,824.88 and 38,953.92

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Solution

The fourth proportional to 65,824.86, 90,824.88 and 38,953.92 is: 53,748.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,824.86 : 90,824.88 = 38,953.92 : x
  2. Step 2: Convert to fraction form
    65,824.86/90,824.88 = 38,953.92/x
  3. Step 3: Cross multiply
    65,824.86x = 90,824.88 × 38,953.92
  4. Step 4: Simplify right side
    65,824.86x = 3,537,985,109.53
  5. Step 5: Solve for x
    x = 3,537,985,109.53/65,824.86
  6. Step 6: Final answer
    x = 53,748.46

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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.