Home / 65,590.48-90,512.18-38,741.68

Finding the Fourth Proportional to 65,590.48, 90,512.18 and 38,741.68

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Solution

The fourth proportional to 65,590.48, 90,512.18 and 38,741.68 is: 53,461.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,590.48 : 90,512.18 = 38,741.68 : x
  2. Step 2: Convert to fraction form
    65,590.48/90,512.18 = 38,741.68/x
  3. Step 3: Cross multiply
    65,590.48x = 90,512.18 × 38,741.68
  4. Step 4: Simplify right side
    65,590.48x = 3,506,593,913.66
  5. Step 5: Solve for x
    x = 3,506,593,913.66/65,590.48
  6. Step 6: Final answer
    x = 53,461.93

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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.