Home / 65,708.76-90,686.64-45,555.18

Finding the Fourth Proportional to 65,708.76, 90,686.64 and 45,555.18

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Solution

The fourth proportional to 65,708.76, 90,686.64 and 45,555.18 is: 62,872.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,708.76 : 90,686.64 = 45,555.18 : x
  2. Step 2: Convert to fraction form
    65,708.76/90,686.64 = 45,555.18/x
  3. Step 3: Cross multiply
    65,708.76x = 90,686.64 × 45,555.18
  4. Step 4: Simplify right side
    65,708.76x = 4,131,246,208.80
  5. Step 5: Solve for x
    x = 4,131,246,208.80/65,708.76
  6. Step 6: Final answer
    x = 62,872.08

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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.