Home / 105,306.44-145,322.82-57,559.77

Finding the Fourth Proportional to 105,306.44, 145,322.82 and 57,559.77

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Solution

The fourth proportional to 105,306.44, 145,322.82 and 57,559.77 is: 79,432.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,306.44 : 145,322.82 = 57,559.77 : x
  2. Step 2: Convert to fraction form
    105,306.44/145,322.82 = 57,559.77/x
  3. Step 3: Cross multiply
    105,306.44x = 145,322.82 × 57,559.77
  4. Step 4: Simplify right side
    105,306.44x = 8,364,748,094.95
  5. Step 5: Solve for x
    x = 8,364,748,094.95/105,306.44
  6. Step 6: Final answer
    x = 79,432.45

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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.