Home / 90,828.60-125,346.36-56,826.18

Finding the Fourth Proportional to 90,828.60, 125,346.36 and 56,826.18

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Solution

The fourth proportional to 90,828.60, 125,346.36 and 56,826.18 is: 78,421.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,828.60 : 125,346.36 = 56,826.18 : x
  2. Step 2: Convert to fraction form
    90,828.60/125,346.36 = 56,826.18/x
  3. Step 3: Cross multiply
    90,828.60x = 125,346.36 × 56,826.18
  4. Step 4: Simplify right side
    90,828.60x = 7,122,954,815.70
  5. Step 5: Solve for x
    x = 7,122,954,815.70/90,828.60
  6. Step 6: Final answer
    x = 78,421.94

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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.