Home / 58,990.14-81,326.79-57,155.58

Finding the Fourth Proportional to 58,990.14, 81,326.79 and 57,155.58

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Solution

The fourth proportional to 58,990.14, 81,326.79 and 57,155.58 is: 78,797.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,990.14 : 81,326.79 = 57,155.58 : x
  2. Step 2: Convert to fraction form
    58,990.14/81,326.79 = 57,155.58/x
  3. Step 3: Cross multiply
    58,990.14x = 81,326.79 × 57,155.58
  4. Step 4: Simplify right side
    58,990.14x = 4,648,279,851.99
  5. Step 5: Solve for x
    x = 4,648,279,851.99/58,990.14
  6. Step 6: Final answer
    x = 78,797.57

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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.