Home / 58,783.36-81,074.12-38,660.90

Finding the Fourth Proportional to 58,783.36, 81,074.12 and 38,660.90

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Solution

The fourth proportional to 58,783.36, 81,074.12 and 38,660.90 is: 53,321.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,783.36 : 81,074.12 = 38,660.90 : x
  2. Step 2: Convert to fraction form
    58,783.36/81,074.12 = 38,660.90/x
  3. Step 3: Cross multiply
    58,783.36x = 81,074.12 × 38,660.90
  4. Step 4: Simplify right side
    58,783.36x = 3,134,398,745.25
  5. Step 5: Solve for x
    x = 3,134,398,745.25/58,783.36
  6. Step 6: Final answer
    x = 53,321.19

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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.