Home / 89,826.30-134,848.80-45,430.20

Finding the Fourth Proportional to 89,826.30, 134,848.80 and 45,430.20

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Solution

The fourth proportional to 89,826.30, 134,848.80 and 45,430.20 is: 68,200.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,826.30 : 134,848.80 = 45,430.20 : x
  2. Step 2: Convert to fraction form
    89,826.30/134,848.80 = 45,430.20/x
  3. Step 3: Cross multiply
    89,826.30x = 134,848.80 × 45,430.20
  4. Step 4: Simplify right side
    89,826.30x = 6,126,207,953.76
  5. Step 5: Solve for x
    x = 6,126,207,953.76/89,826.30
  6. Step 6: Final answer
    x = 68,200.60

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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.