Home / 97,814.50-134,985.41-56,977.58

Finding the Fourth Proportional to 97,814.50, 134,985.41 and 56,977.58

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Solution

The fourth proportional to 97,814.50, 134,985.41 and 56,977.58 is: 78,629.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,814.50 : 134,985.41 = 56,977.58 : x
  2. Step 2: Convert to fraction form
    97,814.50/134,985.41 = 56,977.58/x
  3. Step 3: Cross multiply
    97,814.50x = 134,985.41 × 56,977.58
  4. Step 4: Simplify right side
    97,814.50x = 7,691,141,659.64
  5. Step 5: Solve for x
    x = 7,691,141,659.64/97,814.50
  6. Step 6: Final answer
    x = 78,629.87

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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.