Home / 85,749.50-128,624.33-35,802.37

Finding the Fourth Proportional to 85,749.50, 128,624.33 and 35,802.37

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Solution

The fourth proportional to 85,749.50, 128,624.33 and 35,802.37 is: 53,703.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,749.50 : 128,624.33 = 35,802.37 : x
  2. Step 2: Convert to fraction form
    85,749.50/128,624.33 = 35,802.37/x
  3. Step 3: Cross multiply
    85,749.50x = 128,624.33 × 35,802.37
  4. Step 4: Simplify right side
    85,749.50x = 4,605,055,853.66
  5. Step 5: Solve for x
    x = 4,605,055,853.66/85,749.50
  6. Step 6: Final answer
    x = 53,703.59

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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.