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Finding the Fourth Proportional to 64,888, 89,545.53 and 35,080

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Solution

The fourth proportional to 64,888, 89,545.53 and 35,080 is: 48,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,888 : 89,545.53 = 35,080 : x
  2. Step 2: Convert to fraction form
    64,888/89,545.53 = 35,080/x
  3. Step 3: Cross multiply
    64,888x = 89,545.53 × 35,080
  4. Step 4: Simplify right side
    64,888x = 3,141,257,192.40
  5. Step 5: Solve for x
    x = 3,141,257,192.40/64,888
  6. Step 6: Final answer
    x = 48,410.45

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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.