Home / 79,271.87-109,381.73-52,400.00

Finding the Fourth Proportional to 79,271.87, 109,381.73 and 52,400.00

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Solution

The fourth proportional to 79,271.87, 109,381.73 and 52,400.00 is: 72,303.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,271.87 : 109,381.73 = 52,400.00 : x
  2. Step 2: Convert to fraction form
    79,271.87/109,381.73 = 52,400.00/x
  3. Step 3: Cross multiply
    79,271.87x = 109,381.73 × 52,400.00
  4. Step 4: Simplify right side
    79,271.87x = 5,731,602,663.45
  5. Step 5: Solve for x
    x = 5,731,602,663.45/79,271.87
  6. Step 6: Final answer
    x = 72,303.11

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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.