Home / 92,648.13-139,158.15-55,281.12

Finding the Fourth Proportional to 92,648.13, 139,158.15 and 55,281.12

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Solution

The fourth proportional to 92,648.13, 139,158.15 and 55,281.12 is: 83,032.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,648.13 : 139,158.15 = 55,281.12 : x
  2. Step 2: Convert to fraction form
    92,648.13/139,158.15 = 55,281.12/x
  3. Step 3: Cross multiply
    92,648.13x = 139,158.15 × 55,281.12
  4. Step 4: Simplify right side
    92,648.13x = 7,692,818,389.13
  5. Step 5: Solve for x
    x = 7,692,818,389.13/92,648.13
  6. Step 6: Final answer
    x = 83,032.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.