Home / 65,243.96-90,032.40-38,381.28

Finding the Fourth Proportional to 65,243.96, 90,032.40 and 38,381.28

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Solution

The fourth proportional to 65,243.96, 90,032.40 and 38,381.28 is: 52,963.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,243.96 : 90,032.40 = 38,381.28 : x
  2. Step 2: Convert to fraction form
    65,243.96/90,032.40 = 38,381.28/x
  3. Step 3: Cross multiply
    65,243.96x = 90,032.40 × 38,381.28
  4. Step 4: Simplify right side
    65,243.96x = 3,455,558,415.85
  5. Step 5: Solve for x
    x = 3,455,558,415.85/65,243.96
  6. Step 6: Final answer
    x = 52,963.65

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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.