Home / 79,307.36-109,434.07-45,318.05

Finding the Fourth Proportional to 79,307.36, 109,434.07 and 45,318.05

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Solution

The fourth proportional to 79,307.36, 109,434.07 and 45,318.05 is: 62,533.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,307.36 : 109,434.07 = 45,318.05 : x
  2. Step 2: Convert to fraction form
    79,307.36/109,434.07 = 45,318.05/x
  3. Step 3: Cross multiply
    79,307.36x = 109,434.07 × 45,318.05
  4. Step 4: Simplify right side
    79,307.36x = 4,959,338,655.96
  5. Step 5: Solve for x
    x = 4,959,338,655.96/79,307.36
  6. Step 6: Final answer
    x = 62,533.15

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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.