Home / 85,541.22-128,303.56-26,361

Finding the Fourth Proportional to 85,541.22, 128,303.56 and 26,361

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Solution

The fourth proportional to 85,541.22, 128,303.56 and 26,361 is: 39,538.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,541.22 : 128,303.56 = 26,361 : x
  2. Step 2: Convert to fraction form
    85,541.22/128,303.56 = 26,361/x
  3. Step 3: Cross multiply
    85,541.22x = 128,303.56 × 26,361
  4. Step 4: Simplify right side
    85,541.22x = 3,382,210,145.16
  5. Step 5: Solve for x
    x = 3,382,210,145.16/85,541.22
  6. Step 6: Final answer
    x = 39,538.95

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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.