Home / 48,283.67-72,429.15-31,378.16

Finding the Fourth Proportional to 48,283.67, 72,429.15 and 31,378.16

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Solution

The fourth proportional to 48,283.67, 72,429.15 and 31,378.16 is: 47,069.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,283.67 : 72,429.15 = 31,378.16 : x
  2. Step 2: Convert to fraction form
    48,283.67/72,429.15 = 31,378.16/x
  3. Step 3: Cross multiply
    48,283.67x = 72,429.15 × 31,378.16
  4. Step 4: Simplify right side
    48,283.67x = 2,272,693,457.36
  5. Step 5: Solve for x
    x = 2,272,693,457.36/48,283.67
  6. Step 6: Final answer
    x = 47,069.61

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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.