Home / 67,713.84-101,577.96-20,970.36

Finding the Fourth Proportional to 67,713.84, 101,577.96 and 20,970.36

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Solution

The fourth proportional to 67,713.84, 101,577.96 and 20,970.36 is: 31,457.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,713.84 : 101,577.96 = 20,970.36 : x
  2. Step 2: Convert to fraction form
    67,713.84/101,577.96 = 20,970.36/x
  3. Step 3: Cross multiply
    67,713.84x = 101,577.96 × 20,970.36
  4. Step 4: Simplify right side
    67,713.84x = 2,130,126,389.27
  5. Step 5: Solve for x
    x = 2,130,126,389.27/67,713.84
  6. Step 6: Final answer
    x = 31,457.77

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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.