Home / 58,869.18-81,198.51-38,719.74

Finding the Fourth Proportional to 58,869.18, 81,198.51 and 38,719.74

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Solution

The fourth proportional to 58,869.18, 81,198.51 and 38,719.74 is: 53,406.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,869.18 : 81,198.51 = 38,719.74 : x
  2. Step 2: Convert to fraction form
    58,869.18/81,198.51 = 38,719.74/x
  3. Step 3: Cross multiply
    58,869.18x = 81,198.51 × 38,719.74
  4. Step 4: Simplify right side
    58,869.18x = 3,143,985,195.59
  5. Step 5: Solve for x
    x = 3,143,985,195.59/58,869.18
  6. Step 6: Final answer
    x = 53,406.30

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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.