Home / 65,562.21-90,454.73-38,713.68

Finding the Fourth Proportional to 65,562.21, 90,454.73 and 38,713.68

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Solution

The fourth proportional to 65,562.21, 90,454.73 and 38,713.68 is: 53,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,562.21 : 90,454.73 = 38,713.68 : x
  2. Step 2: Convert to fraction form
    65,562.21/90,454.73 = 38,713.68/x
  3. Step 3: Cross multiply
    65,562.21x = 90,454.73 × 38,713.68
  4. Step 4: Simplify right side
    65,562.21x = 3,501,835,278.14
  5. Step 5: Solve for x
    x = 3,501,835,278.14/65,562.21
  6. Step 6: Final answer
    x = 53,412.40

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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.