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Finding the Fourth Proportional to 72,693.09, 109,030.05 and 25,298.07

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Solution

The fourth proportional to 72,693.09, 109,030.05 and 25,298.07 is: 37,943.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,693.09 : 109,030.05 = 25,298.07 : x
  2. Step 2: Convert to fraction form
    72,693.09/109,030.05 = 25,298.07/x
  3. Step 3: Cross multiply
    72,693.09x = 109,030.05 × 25,298.07
  4. Step 4: Simplify right side
    72,693.09x = 2,758,249,837.00
  5. Step 5: Solve for x
    x = 2,758,249,837.00/72,693.09
  6. Step 6: Final answer
    x = 37,943.77

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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.