Home / 89,509.49-134,264.23-42,620.21

Finding the Fourth Proportional to 89,509.49, 134,264.23 and 42,620.21

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Solution

The fourth proportional to 89,509.49, 134,264.23 and 42,620.21 is: 63,930.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,509.49 : 134,264.23 = 42,620.21 : x
  2. Step 2: Convert to fraction form
    89,509.49/134,264.23 = 42,620.21/x
  3. Step 3: Cross multiply
    89,509.49x = 134,264.23 × 42,620.21
  4. Step 4: Simplify right side
    89,509.49x = 5,722,369,464.99
  5. Step 5: Solve for x
    x = 5,722,369,464.99/89,509.49
  6. Step 6: Final answer
    x = 63,930.31

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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.