Home / 85,802.56-128,707.26-26,636.92

Finding the Fourth Proportional to 85,802.56, 128,707.26 and 26,636.92

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Solution

The fourth proportional to 85,802.56, 128,707.26 and 26,636.92 is: 39,956.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,802.56 : 128,707.26 = 26,636.92 : x
  2. Step 2: Convert to fraction form
    85,802.56/128,707.26 = 26,636.92/x
  3. Step 3: Cross multiply
    85,802.56x = 128,707.26 × 26,636.92
  4. Step 4: Simplify right side
    85,802.56x = 3,428,364,988.04
  5. Step 5: Solve for x
    x = 3,428,364,988.04/85,802.56
  6. Step 6: Final answer
    x = 39,956.44

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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.