Home / 97,823.30-134,987.72-56,981.07

Finding the Fourth Proportional to 97,823.30, 134,987.72 and 56,981.07

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Solution

The fourth proportional to 97,823.30, 134,987.72 and 56,981.07 is: 78,628.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,823.30 : 134,987.72 = 56,981.07 : x
  2. Step 2: Convert to fraction form
    97,823.30/134,987.72 = 56,981.07/x
  3. Step 3: Cross multiply
    97,823.30x = 134,987.72 × 56,981.07
  4. Step 4: Simplify right side
    97,823.30x = 7,691,744,437.56
  5. Step 5: Solve for x
    x = 7,691,744,437.56/97,823.30
  6. Step 6: Final answer
    x = 78,628.96

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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.