Home / 79,780.16-119,681.18-35,405.93

Finding the Fourth Proportional to 79,780.16, 119,681.18 and 35,405.93

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Solution

The fourth proportional to 79,780.16, 119,681.18 and 35,405.93 is: 53,113.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,780.16 : 119,681.18 = 35,405.93 : x
  2. Step 2: Convert to fraction form
    79,780.16/119,681.18 = 35,405.93/x
  3. Step 3: Cross multiply
    79,780.16x = 119,681.18 × 35,405.93
  4. Step 4: Simplify right side
    79,780.16x = 4,237,422,705.96
  5. Step 5: Solve for x
    x = 4,237,422,705.96/79,780.16
  6. Step 6: Final answer
    x = 53,113.74

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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.