Home / 81,617.61-112,626.81-45,317.18

Finding the Fourth Proportional to 81,617.61, 112,626.81 and 45,317.18

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Solution

The fourth proportional to 81,617.61, 112,626.81 and 45,317.18 is: 62,534.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,617.61 : 112,626.81 = 45,317.18 : x
  2. Step 2: Convert to fraction form
    81,617.61/112,626.81 = 45,317.18/x
  3. Step 3: Cross multiply
    81,617.61x = 112,626.81 × 45,317.18
  4. Step 4: Simplify right side
    81,617.61x = 5,103,929,797.82
  5. Step 5: Solve for x
    x = 5,103,929,797.82/81,617.61
  6. Step 6: Final answer
    x = 62,534.67

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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.