Home / 65,864.93-90,859.36-40,377.26

Finding the Fourth Proportional to 65,864.93, 90,859.36 and 40,377.26

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Solution

The fourth proportional to 65,864.93, 90,859.36 and 40,377.26 is: 55,699.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,864.93 : 90,859.36 = 40,377.26 : x
  2. Step 2: Convert to fraction form
    65,864.93/90,859.36 = 40,377.26/x
  3. Step 3: Cross multiply
    65,864.93x = 90,859.36 × 40,377.26
  4. Step 4: Simplify right side
    65,864.93x = 3,668,652,128.36
  5. Step 5: Solve for x
    x = 3,668,652,128.36/65,864.93
  6. Step 6: Final answer
    x = 55,699.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.