Home / 72,171.36-99,640.80-46,700.64

Finding the Fourth Proportional to 72,171.36, 99,640.80 and 46,700.64

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Solution

The fourth proportional to 72,171.36, 99,640.80 and 46,700.64 is: 64,475.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,171.36 : 99,640.80 = 46,700.64 : x
  2. Step 2: Convert to fraction form
    72,171.36/99,640.80 = 46,700.64/x
  3. Step 3: Cross multiply
    72,171.36x = 99,640.80 × 46,700.64
  4. Step 4: Simplify right side
    72,171.36x = 4,653,289,130.11
  5. Step 5: Solve for x
    x = 4,653,289,130.11/72,171.36
  6. Step 6: Final answer
    x = 64,475.56

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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.