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Finding the Fourth Proportional to 64,776, 97,164 and 18,030.09

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Solution

The fourth proportional to 64,776, 97,164 and 18,030.09 is: 27,045.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,776 : 97,164 = 18,030.09 : x
  2. Step 2: Convert to fraction form
    64,776/97,164 = 18,030.09/x
  3. Step 3: Cross multiply
    64,776x = 97,164 × 18,030.09
  4. Step 4: Simplify right side
    64,776x = 1,751,875,664.76
  5. Step 5: Solve for x
    x = 1,751,875,664.76/64,776
  6. Step 6: Final answer
    x = 27,045.14

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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.