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Finding the Fourth Proportional to 89,130.40, 133,695.70 and 21,662.06

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Solution

The fourth proportional to 89,130.40, 133,695.70 and 21,662.06 is: 32,493.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,130.40 : 133,695.70 = 21,662.06 : x
  2. Step 2: Convert to fraction form
    89,130.40/133,695.70 = 21,662.06/x
  3. Step 3: Cross multiply
    89,130.40x = 133,695.70 × 21,662.06
  4. Step 4: Simplify right side
    89,130.40x = 2,896,123,552.51
  5. Step 5: Solve for x
    x = 2,896,123,552.51/89,130.40
  6. Step 6: Final answer
    x = 32,493.11

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1.5x scale

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.