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Finding the Fourth Proportional to 57,160.80, 78,886.08 and 34,505.34

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Solution

The fourth proportional to 57,160.80, 78,886.08 and 34,505.34 is: 47,619.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,160.80 : 78,886.08 = 34,505.34 : x
  2. Step 2: Convert to fraction form
    57,160.80/78,886.08 = 34,505.34/x
  3. Step 3: Cross multiply
    57,160.80x = 78,886.08 × 34,505.34
  4. Step 4: Simplify right side
    57,160.80x = 2,721,991,011.67
  5. Step 5: Solve for x
    x = 2,721,991,011.67/57,160.80
  6. Step 6: Final answer
    x = 47,619.89

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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.