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Finding the Fourth Proportional to 69,670.16, 96,164.52 and 57,124.88

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Solution

The fourth proportional to 69,670.16, 96,164.52 and 57,124.88 is: 78,848.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,670.16 : 96,164.52 = 57,124.88 : x
  2. Step 2: Convert to fraction form
    69,670.16/96,164.52 = 57,124.88/x
  3. Step 3: Cross multiply
    69,670.16x = 96,164.52 × 57,124.88
  4. Step 4: Simplify right side
    69,670.16x = 5,493,386,665.26
  5. Step 5: Solve for x
    x = 5,493,386,665.26/69,670.16
  6. Step 6: Final answer
    x = 78,848.49

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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.