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Finding the Fourth Proportional to 89,032, 133,570.80 and 62,788

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Solution

The fourth proportional to 89,032, 133,570.80 and 62,788 is: 94,198.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,032 : 133,570.80 = 62,788 : x
  2. Step 2: Convert to fraction form
    89,032/133,570.80 = 62,788/x
  3. Step 3: Cross multiply
    89,032x = 133,570.80 × 62,788
  4. Step 4: Simplify right side
    89,032x = 8,386,643,390.40
  5. Step 5: Solve for x
    x = 8,386,643,390.40/89,032
  6. Step 6: Final answer
    x = 94,198.08

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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.