Home / 89,779.64-123,882.32-51,015.12

Finding the Fourth Proportional to 89,779.64, 123,882.32 and 51,015.12

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Solution

The fourth proportional to 89,779.64, 123,882.32 and 51,015.12 is: 70,393.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,779.64 : 123,882.32 = 51,015.12 : x
  2. Step 2: Convert to fraction form
    89,779.64/123,882.32 = 51,015.12/x
  3. Step 3: Cross multiply
    89,779.64x = 123,882.32 × 51,015.12
  4. Step 4: Simplify right side
    89,779.64x = 6,319,871,420.68
  5. Step 5: Solve for x
    x = 6,319,871,420.68/89,779.64
  6. Step 6: Final answer
    x = 70,393.15

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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.