Home / 72,931.17-109,315.45-30,798.62

Finding the Fourth Proportional to 72,931.17, 109,315.45 and 30,798.62

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Solution

The fourth proportional to 72,931.17, 109,315.45 and 30,798.62 is: 46,163.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,931.17 : 109,315.45 = 30,798.62 : x
  2. Step 2: Convert to fraction form
    72,931.17/109,315.45 = 30,798.62/x
  3. Step 3: Cross multiply
    72,931.17x = 109,315.45 × 30,798.62
  4. Step 4: Simplify right side
    72,931.17x = 3,366,765,004.68
  5. Step 5: Solve for x
    x = 3,366,765,004.68/72,931.17
  6. Step 6: Final answer
    x = 46,163.60

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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.