Home / 79,155.12-109,232.56-43,343.40

Finding the Fourth Proportional to 79,155.12, 109,232.56 and 43,343.40

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Solution

The fourth proportional to 79,155.12, 109,232.56 and 43,343.40 is: 59,813.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,155.12 : 109,232.56 = 43,343.40 : x
  2. Step 2: Convert to fraction form
    79,155.12/109,232.56 = 43,343.40/x
  3. Step 3: Cross multiply
    79,155.12x = 109,232.56 × 43,343.40
  4. Step 4: Simplify right side
    79,155.12x = 4,734,510,541.10
  5. Step 5: Solve for x
    x = 4,734,510,541.10/79,155.12
  6. Step 6: Final answer
    x = 59,813.07

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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.