Home / 81,533.04-122,275.82-31,602

Finding the Fourth Proportional to 81,533.04, 122,275.82 and 31,602

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Solution

The fourth proportional to 81,533.04, 122,275.82 and 31,602 is: 47,393.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,533.04 : 122,275.82 = 31,602 : x
  2. Step 2: Convert to fraction form
    81,533.04/122,275.82 = 31,602/x
  3. Step 3: Cross multiply
    81,533.04x = 122,275.82 × 31,602
  4. Step 4: Simplify right side
    81,533.04x = 3,864,160,463.64
  5. Step 5: Solve for x
    x = 3,864,160,463.64/81,533.04
  6. Step 6: Final answer
    x = 47,393.80

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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.