Home / 92,810.21-139,036.23-55,400.22

Finding the Fourth Proportional to 92,810.21, 139,036.23 and 55,400.22

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Solution

The fourth proportional to 92,810.21, 139,036.23 and 55,400.22 is: 82,993.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,810.21 : 139,036.23 = 55,400.22 : x
  2. Step 2: Convert to fraction form
    92,810.21/139,036.23 = 55,400.22/x
  3. Step 3: Cross multiply
    92,810.21x = 139,036.23 × 55,400.22
  4. Step 4: Simplify right side
    92,810.21x = 7,702,637,729.97
  5. Step 5: Solve for x
    x = 7,702,637,729.97/92,810.21
  6. Step 6: Final answer
    x = 82,993.44

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1.5x scale

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.