Home / 72,935.70-109,184.85-43,338.30

Finding the Fourth Proportional to 72,935.70, 109,184.85 and 43,338.30

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Solution

The fourth proportional to 72,935.70, 109,184.85 and 43,338.30 is: 64,877.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,935.70 : 109,184.85 = 43,338.30 : x
  2. Step 2: Convert to fraction form
    72,935.70/109,184.85 = 43,338.30/x
  3. Step 3: Cross multiply
    72,935.70x = 109,184.85 × 43,338.30
  4. Step 4: Simplify right side
    72,935.70x = 4,731,885,784.76
  5. Step 5: Solve for x
    x = 4,731,885,784.76/72,935.70
  6. Step 6: Final answer
    x = 64,877.50

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1.5x scale

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.