Home / 61,140.81-84,376.43-34,283.64

Finding the Fourth Proportional to 61,140.81, 84,376.43 and 34,283.64

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Solution

The fourth proportional to 61,140.81, 84,376.43 and 34,283.64 is: 47,312.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,140.81 : 84,376.43 = 34,283.64 : x
  2. Step 2: Convert to fraction form
    61,140.81/84,376.43 = 34,283.64/x
  3. Step 3: Cross multiply
    61,140.81x = 84,376.43 × 34,283.64
  4. Step 4: Simplify right side
    61,140.81x = 2,892,731,150.61
  5. Step 5: Solve for x
    x = 2,892,731,150.61/61,140.81
  6. Step 6: Final answer
    x = 47,312.61

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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.