Home / 88,742.63-122,465.13-56,911.66

Finding the Fourth Proportional to 88,742.63, 122,465.13 and 56,911.66

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Solution

The fourth proportional to 88,742.63, 122,465.13 and 56,911.66 is: 78,538.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,742.63 : 122,465.13 = 56,911.66 : x
  2. Step 2: Convert to fraction form
    88,742.63/122,465.13 = 56,911.66/x
  3. Step 3: Cross multiply
    88,742.63x = 122,465.13 × 56,911.66
  4. Step 4: Simplify right side
    88,742.63x = 6,969,693,228.09
  5. Step 5: Solve for x
    x = 6,969,693,228.09/88,742.63
  6. Step 6: Final answer
    x = 78,538.28

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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.