Home / 89,628.90-134,281.35-52,158.30

Finding the Fourth Proportional to 89,628.90, 134,281.35 and 52,158.30

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Solution

The fourth proportional to 89,628.90, 134,281.35 and 52,158.30 is: 78,143.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,628.90 : 134,281.35 = 52,158.30 : x
  2. Step 2: Convert to fraction form
    89,628.90/134,281.35 = 52,158.30/x
  3. Step 3: Cross multiply
    89,628.90x = 134,281.35 × 52,158.30
  4. Step 4: Simplify right side
    89,628.90x = 7,003,886,937.71
  5. Step 5: Solve for x
    x = 7,003,886,937.71/89,628.90
  6. Step 6: Final answer
    x = 78,143.18

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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.