Home / 78,923.96-108,913.70-43,113.05

Finding the Fourth Proportional to 78,923.96, 108,913.70 and 43,113.05

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Solution

The fourth proportional to 78,923.96, 108,913.70 and 43,113.05 is: 59,495.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,923.96 : 108,913.70 = 43,113.05 : x
  2. Step 2: Convert to fraction form
    78,923.96/108,913.70 = 43,113.05/x
  3. Step 3: Cross multiply
    78,923.96x = 108,913.70 × 43,113.05
  4. Step 4: Simplify right side
    78,923.96x = 4,695,601,522.91
  5. Step 5: Solve for x
    x = 4,695,601,522.91/78,923.96
  6. Step 6: Final answer
    x = 59,495.26

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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.