Home / 73,478.12-101,402.43-45,178.34

Finding the Fourth Proportional to 73,478.12, 101,402.43 and 45,178.34

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Solution

The fourth proportional to 73,478.12, 101,402.43 and 45,178.34 is: 62,347.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,478.12 : 101,402.43 = 45,178.34 : x
  2. Step 2: Convert to fraction form
    73,478.12/101,402.43 = 45,178.34/x
  3. Step 3: Cross multiply
    73,478.12x = 101,402.43 × 45,178.34
  4. Step 4: Simplify right side
    73,478.12x = 4,581,193,459.37
  5. Step 5: Solve for x
    x = 4,581,193,459.37/73,478.12
  6. Step 6: Final answer
    x = 62,347.72

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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.