Home / 89,721.40-134,557.80-26,541.40

Finding the Fourth Proportional to 89,721.40, 134,557.80 and 26,541.40

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Solution

The fourth proportional to 89,721.40, 134,557.80 and 26,541.40 is: 39,804.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,721.40 : 134,557.80 = 26,541.40 : x
  2. Step 2: Convert to fraction form
    89,721.40/134,557.80 = 26,541.40/x
  3. Step 3: Cross multiply
    89,721.40x = 134,557.80 × 26,541.40
  4. Step 4: Simplify right side
    89,721.40x = 3,571,352,392.92
  5. Step 5: Solve for x
    x = 3,571,352,392.92/89,721.40
  6. Step 6: Final answer
    x = 39,804.91

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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.