Home / 65,644.81-98,499.35-40,678.18

Finding the Fourth Proportional to 65,644.81, 98,499.35 and 40,678.18

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Solution

The fourth proportional to 65,644.81, 98,499.35 and 40,678.18 is: 61,037.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,644.81 : 98,499.35 = 40,678.18 : x
  2. Step 2: Convert to fraction form
    65,644.81/98,499.35 = 40,678.18/x
  3. Step 3: Cross multiply
    65,644.81x = 98,499.35 × 40,678.18
  4. Step 4: Simplify right side
    65,644.81x = 4,006,774,085.79
  5. Step 5: Solve for x
    x = 4,006,774,085.79/65,644.81
  6. Step 6: Final answer
    x = 61,037.18

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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.