Home / 58,775.92-81,135.61-39,681.56

Finding the Fourth Proportional to 58,775.92, 81,135.61 and 39,681.56

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Solution

The fourth proportional to 58,775.92, 81,135.61 and 39,681.56 is: 54,777.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,775.92 : 81,135.61 = 39,681.56 : x
  2. Step 2: Convert to fraction form
    58,775.92/81,135.61 = 39,681.56/x
  3. Step 3: Cross multiply
    58,775.92x = 81,135.61 × 39,681.56
  4. Step 4: Simplify right side
    58,775.92x = 3,219,587,701.85
  5. Step 5: Solve for x
    x = 3,219,587,701.85/58,775.92
  6. Step 6: Final answer
    x = 54,777.32

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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.