Home / 75,683.10-113,538.42-31,285.74

Finding the Fourth Proportional to 75,683.10, 113,538.42 and 31,285.74

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Solution

The fourth proportional to 75,683.10, 113,538.42 and 31,285.74 is: 46,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,683.10 : 113,538.42 = 31,285.74 : x
  2. Step 2: Convert to fraction form
    75,683.10/113,538.42 = 31,285.74/x
  3. Step 3: Cross multiply
    75,683.10x = 113,538.42 × 31,285.74
  4. Step 4: Simplify right side
    75,683.10x = 3,552,133,488.13
  5. Step 5: Solve for x
    x = 3,552,133,488.13/75,683.10
  6. Step 6: Final answer
    x = 46,934.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.