Home / 65,287.18-90,065.58-47,342.83

Finding the Fourth Proportional to 65,287.18, 90,065.58 and 47,342.83

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Solution

The fourth proportional to 65,287.18, 90,065.58 and 47,342.83 is: 65,310.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,287.18 : 90,065.58 = 47,342.83 : x
  2. Step 2: Convert to fraction form
    65,287.18/90,065.58 = 47,342.83/x
  3. Step 3: Cross multiply
    65,287.18x = 90,065.58 × 47,342.83
  4. Step 4: Simplify right side
    65,287.18x = 4,263,959,442.79
  5. Step 5: Solve for x
    x = 4,263,959,442.79/65,287.18
  6. Step 6: Final answer
    x = 65,310.82

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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.