Home / 72,133.34-99,540.09-40,296.08

Finding the Fourth Proportional to 72,133.34, 99,540.09 and 40,296.08

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Solution

The fourth proportional to 72,133.34, 99,540.09 and 40,296.08 is: 55,606.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,133.34 : 99,540.09 = 40,296.08 : x
  2. Step 2: Convert to fraction form
    72,133.34/99,540.09 = 40,296.08/x
  3. Step 3: Cross multiply
    72,133.34x = 99,540.09 × 40,296.08
  4. Step 4: Simplify right side
    72,133.34x = 4,011,075,678.70
  5. Step 5: Solve for x
    x = 4,011,075,678.70/72,133.34
  6. Step 6: Final answer
    x = 55,606.41

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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.