Home / 74,715.84-103,075.20-53,487.36

Finding the Fourth Proportional to 74,715.84, 103,075.20 and 53,487.36

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Solution

The fourth proportional to 74,715.84, 103,075.20 and 53,487.36 is: 73,789.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,715.84 : 103,075.20 = 53,487.36 : x
  2. Step 2: Convert to fraction form
    74,715.84/103,075.20 = 53,487.36/x
  3. Step 3: Cross multiply
    74,715.84x = 103,075.20 × 53,487.36
  4. Step 4: Simplify right side
    74,715.84x = 5,513,220,329.47
  5. Step 5: Solve for x
    x = 5,513,220,329.47/74,715.84
  6. Step 6: Final answer
    x = 73,789.18

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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.