Home / 89,482.31-123,438.90-55,479.93

Finding the Fourth Proportional to 89,482.31, 123,438.90 and 55,479.93

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Solution

The fourth proportional to 89,482.31, 123,438.90 and 55,479.93 is: 76,533.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,482.31 : 123,438.90 = 55,479.93 : x
  2. Step 2: Convert to fraction form
    89,482.31/123,438.90 = 55,479.93/x
  3. Step 3: Cross multiply
    89,482.31x = 123,438.90 × 55,479.93
  4. Step 4: Simplify right side
    89,482.31x = 6,848,381,531.28
  5. Step 5: Solve for x
    x = 6,848,381,531.28/89,482.31
  6. Step 6: Final answer
    x = 76,533.36

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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.