Home / 79,145.10-118,544.85-61,476.30

Finding the Fourth Proportional to 79,145.10, 118,544.85 and 61,476.30

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Solution

The fourth proportional to 79,145.10, 118,544.85 and 61,476.30 is: 92,080.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,145.10 : 118,544.85 = 61,476.30 : x
  2. Step 2: Convert to fraction form
    79,145.10/118,544.85 = 61,476.30/x
  3. Step 3: Cross multiply
    79,145.10x = 118,544.85 × 61,476.30
  4. Step 4: Simplify right side
    79,145.10x = 7,287,698,762.06
  5. Step 5: Solve for x
    x = 7,287,698,762.06/79,145.10
  6. Step 6: Final answer
    x = 92,080.23

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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.