Home / 89,607.80-123,607.26-56,015.48

Finding the Fourth Proportional to 89,607.80, 123,607.26 and 56,015.48

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Solution

The fourth proportional to 89,607.80, 123,607.26 and 56,015.48 is: 77,269.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,607.80 : 123,607.26 = 56,015.48 : x
  2. Step 2: Convert to fraction form
    89,607.80/123,607.26 = 56,015.48/x
  3. Step 3: Cross multiply
    89,607.80x = 123,607.26 × 56,015.48
  4. Step 4: Simplify right side
    89,607.80x = 6,923,920,000.38
  5. Step 5: Solve for x
    x = 6,923,920,000.38/89,607.80
  6. Step 6: Final answer
    x = 77,269.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.