Home / 77,038.10-115,427.55-50,729.30

Finding the Fourth Proportional to 77,038.10, 115,427.55 and 50,729.30

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Solution

The fourth proportional to 77,038.10, 115,427.55 and 50,729.30 is: 76,008.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,038.10 : 115,427.55 = 50,729.30 : x
  2. Step 2: Convert to fraction form
    77,038.10/115,427.55 = 50,729.30/x
  3. Step 3: Cross multiply
    77,038.10x = 115,427.55 × 50,729.30
  4. Step 4: Simplify right side
    77,038.10x = 5,855,558,812.22
  5. Step 5: Solve for x
    x = 5,855,558,812.22/77,038.10
  6. Step 6: Final answer
    x = 76,008.61

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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.