Home / 78,415.42-108,209.75-44,423.21

Finding the Fourth Proportional to 78,415.42, 108,209.75 and 44,423.21

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Solution

The fourth proportional to 78,415.42, 108,209.75 and 44,423.21 is: 61,302.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,415.42 : 108,209.75 = 44,423.21 : x
  2. Step 2: Convert to fraction form
    78,415.42/108,209.75 = 44,423.21/x
  3. Step 3: Cross multiply
    78,415.42x = 108,209.75 × 44,423.21
  4. Step 4: Simplify right side
    78,415.42x = 4,807,024,448.30
  5. Step 5: Solve for x
    x = 4,807,024,448.30/78,415.42
  6. Step 6: Final answer
    x = 61,302.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.