Home / 85,707.44-128,567.28-26,535.52

Finding the Fourth Proportional to 85,707.44, 128,567.28 and 26,535.52

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Solution

The fourth proportional to 85,707.44, 128,567.28 and 26,535.52 is: 39,805.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,707.44 : 128,567.28 = 26,535.52 : x
  2. Step 2: Convert to fraction form
    85,707.44/128,567.28 = 26,535.52/x
  3. Step 3: Cross multiply
    85,707.44x = 128,567.28 × 26,535.52
  4. Step 4: Simplify right side
    85,707.44x = 3,411,599,629.79
  5. Step 5: Solve for x
    x = 3,411,599,629.79/85,707.44
  6. Step 6: Final answer
    x = 39,805.17

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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.