Home / 105,677.19-145,832.18-57,929.49

Finding the Fourth Proportional to 105,677.19, 145,832.18 and 57,929.49

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Solution

The fourth proportional to 105,677.19, 145,832.18 and 57,929.49 is: 79,941.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,677.19 : 145,832.18 = 57,929.49 : x
  2. Step 2: Convert to fraction form
    105,677.19/145,832.18 = 57,929.49/x
  3. Step 3: Cross multiply
    105,677.19x = 145,832.18 × 57,929.49
  4. Step 4: Simplify right side
    105,677.19x = 8,447,983,523.34
  5. Step 5: Solve for x
    x = 8,447,983,523.34/105,677.19
  6. Step 6: Final answer
    x = 79,941.41

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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.