Home / 65,558.04-98,336.28-18,810.72

Finding the Fourth Proportional to 65,558.04, 98,336.28 and 18,810.72

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Solution

The fourth proportional to 65,558.04, 98,336.28 and 18,810.72 is: 28,215.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,558.04 : 98,336.28 = 18,810.72 : x
  2. Step 2: Convert to fraction form
    65,558.04/98,336.28 = 18,810.72/x
  3. Step 3: Cross multiply
    65,558.04x = 98,336.28 × 18,810.72
  4. Step 4: Simplify right side
    65,558.04x = 1,849,776,228.92
  5. Step 5: Solve for x
    x = 1,849,776,228.92/65,558.04
  6. Step 6: Final answer
    x = 28,215.86

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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.