Home / 81,075.04-111,881.28-45,264

Finding the Fourth Proportional to 81,075.04, 111,881.28 and 45,264

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Solution

The fourth proportional to 81,075.04, 111,881.28 and 45,264 is: 62,463.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,075.04 : 111,881.28 = 45,264 : x
  2. Step 2: Convert to fraction form
    81,075.04/111,881.28 = 45,264/x
  3. Step 3: Cross multiply
    81,075.04x = 111,881.28 × 45,264
  4. Step 4: Simplify right side
    81,075.04x = 5,064,194,257.92
  5. Step 5: Solve for x
    x = 5,064,194,257.92/81,075.04
  6. Step 6: Final answer
    x = 62,463.05

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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.