Home / 79,435.05-109,572.24-47,148.40

Finding the Fourth Proportional to 79,435.05, 109,572.24 and 47,148.40

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Solution

The fourth proportional to 79,435.05, 109,572.24 and 47,148.40 is: 65,036.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,435.05 : 109,572.24 = 47,148.40 : x
  2. Step 2: Convert to fraction form
    79,435.05/109,572.24 = 47,148.40/x
  3. Step 3: Cross multiply
    79,435.05x = 109,572.24 × 47,148.40
  4. Step 4: Simplify right side
    79,435.05x = 5,166,155,661.74
  5. Step 5: Solve for x
    x = 5,166,155,661.74/79,435.05
  6. Step 6: Final answer
    x = 65,036.22

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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.