Home / 85,709.44-128,570.28-26,537.52

Finding the Fourth Proportional to 85,709.44, 128,570.28 and 26,537.52

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Solution

The fourth proportional to 85,709.44, 128,570.28 and 26,537.52 is: 39,808.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,709.44 : 128,570.28 = 26,537.52 : x
  2. Step 2: Convert to fraction form
    85,709.44/128,570.28 = 26,537.52/x
  3. Step 3: Cross multiply
    85,709.44x = 128,570.28 × 26,537.52
  4. Step 4: Simplify right side
    85,709.44x = 3,411,936,376.91
  5. Step 5: Solve for x
    x = 3,411,936,376.91/85,709.44
  6. Step 6: Final answer
    x = 39,808.17

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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.