Home / 92,281.12-127,357.92-56,495.20

Finding the Fourth Proportional to 92,281.12, 127,357.92 and 56,495.20

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Solution

The fourth proportional to 92,281.12, 127,357.92 and 56,495.20 is: 77,969.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,281.12 : 127,357.92 = 56,495.20 : x
  2. Step 2: Convert to fraction form
    92,281.12/127,357.92 = 56,495.20/x
  3. Step 3: Cross multiply
    92,281.12x = 127,357.92 × 56,495.20
  4. Step 4: Simplify right side
    92,281.12x = 7,195,111,161.98
  5. Step 5: Solve for x
    x = 7,195,111,161.98/92,281.12
  6. Step 6: Final answer
    x = 77,969.48

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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.