Home / 84,721.16-116,920.50-48,917.72

Finding the Fourth Proportional to 84,721.16, 116,920.50 and 48,917.72

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Solution

The fourth proportional to 84,721.16, 116,920.50 and 48,917.72 is: 67,509.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,721.16 : 116,920.50 = 48,917.72 : x
  2. Step 2: Convert to fraction form
    84,721.16/116,920.50 = 48,917.72/x
  3. Step 3: Cross multiply
    84,721.16x = 116,920.50 × 48,917.72
  4. Step 4: Simplify right side
    84,721.16x = 5,719,484,281.26
  5. Step 5: Solve for x
    x = 5,719,484,281.26/84,721.16
  6. Step 6: Final answer
    x = 67,509.51

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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.