Home / 57,056.68-78,735.90-31,214.82

Finding the Fourth Proportional to 57,056.68, 78,735.90 and 31,214.82

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Solution

The fourth proportional to 57,056.68, 78,735.90 and 31,214.82 is: 43,075.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,056.68 : 78,735.90 = 31,214.82 : x
  2. Step 2: Convert to fraction form
    57,056.68/78,735.90 = 31,214.82/x
  3. Step 3: Cross multiply
    57,056.68x = 78,735.90 × 31,214.82
  4. Step 4: Simplify right side
    57,056.68x = 2,457,726,946.04
  5. Step 5: Solve for x
    x = 2,457,726,946.04/57,056.68
  6. Step 6: Final answer
    x = 43,075.18

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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.