Home / 51,038.12-76,557.24-19,440.76

Finding the Fourth Proportional to 51,038.12, 76,557.24 and 19,440.76

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Solution

The fourth proportional to 51,038.12, 76,557.24 and 19,440.76 is: 29,161.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,038.12 : 76,557.24 = 19,440.76 : x
  2. Step 2: Convert to fraction form
    51,038.12/76,557.24 = 19,440.76/x
  3. Step 3: Cross multiply
    51,038.12x = 76,557.24 × 19,440.76
  4. Step 4: Simplify right side
    51,038.12x = 1,488,330,929.10
  5. Step 5: Solve for x
    x = 1,488,330,929.10/51,038.12
  6. Step 6: Final answer
    x = 29,161.16

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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.