Home / 61,890.28-92,840.58-19,776.35

Finding the Fourth Proportional to 61,890.28, 92,840.58 and 19,776.35

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Solution

The fourth proportional to 61,890.28, 92,840.58 and 19,776.35 is: 29,666.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,890.28 : 92,840.58 = 19,776.35 : x
  2. Step 2: Convert to fraction form
    61,890.28/92,840.58 = 19,776.35/x
  3. Step 3: Cross multiply
    61,890.28x = 92,840.58 × 19,776.35
  4. Step 4: Simplify right side
    61,890.28x = 1,836,048,036.38
  5. Step 5: Solve for x
    x = 1,836,048,036.38/61,890.28
  6. Step 6: Final answer
    x = 29,666.18

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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.