Home / 97,139.60-134,055.96-56,857.12

Finding the Fourth Proportional to 97,139.60, 134,055.96 and 56,857.12

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Solution

The fourth proportional to 97,139.60, 134,055.96 and 56,857.12 is: 78,464.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,139.60 : 134,055.96 = 56,857.12 : x
  2. Step 2: Convert to fraction form
    97,139.60/134,055.96 = 56,857.12/x
  3. Step 3: Cross multiply
    97,139.60x = 134,055.96 × 56,857.12
  4. Step 4: Simplify right side
    97,139.60x = 7,622,035,804.44
  5. Step 5: Solve for x
    x = 7,622,035,804.44/97,139.60
  6. Step 6: Final answer
    x = 78,464.76

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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.