Home / 105,279.84-145,282.80-57,533.04

Finding the Fourth Proportional to 105,279.84, 145,282.80 and 57,533.04

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Solution

The fourth proportional to 105,279.84, 145,282.80 and 57,533.04 is: 79,393.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,279.84 : 145,282.80 = 57,533.04 : x
  2. Step 2: Convert to fraction form
    105,279.84/145,282.80 = 57,533.04/x
  3. Step 3: Cross multiply
    105,279.84x = 145,282.80 × 57,533.04
  4. Step 4: Simplify right side
    105,279.84x = 8,358,561,143.71
  5. Step 5: Solve for x
    x = 8,358,561,143.71/105,279.84
  6. Step 6: Final answer
    x = 79,393.75

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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.