Home / 61,021.16-91,516.38-19,446.76

Finding the Fourth Proportional to 61,021.16, 91,516.38 and 19,446.76

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Solution

The fourth proportional to 61,021.16, 91,516.38 and 19,446.76 is: 29,165.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,021.16 : 91,516.38 = 19,446.76 : x
  2. Step 2: Convert to fraction form
    61,021.16/91,516.38 = 19,446.76/x
  3. Step 3: Cross multiply
    61,021.16x = 91,516.38 × 19,446.76
  4. Step 4: Simplify right side
    61,021.16x = 1,779,697,077.93
  5. Step 5: Solve for x
    x = 1,779,697,077.93/61,021.16
  6. Step 6: Final answer
    x = 29,165.24

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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.