Home / 65,780.08-98,686.31-19,037.68

Finding the Fourth Proportional to 65,780.08, 98,686.31 and 19,037.68

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Solution

The fourth proportional to 65,780.08, 98,686.31 and 19,037.68 is: 28,561.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,780.08 : 98,686.31 = 19,037.68 : x
  2. Step 2: Convert to fraction form
    65,780.08/98,686.31 = 19,037.68/x
  3. Step 3: Cross multiply
    65,780.08x = 98,686.31 × 19,037.68
  4. Step 4: Simplify right side
    65,780.08x = 1,878,758,390.16
  5. Step 5: Solve for x
    x = 1,878,758,390.16/65,780.08
  6. Step 6: Final answer
    x = 28,561.21

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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.