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Finding the Fourth Proportional to 72,464.10, 100,001.60 and 46,980.69

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Solution

The fourth proportional to 72,464.10, 100,001.60 and 46,980.69 is: 64,834.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,464.10 : 100,001.60 = 46,980.69 : x
  2. Step 2: Convert to fraction form
    72,464.10/100,001.60 = 46,980.69/x
  3. Step 3: Cross multiply
    72,464.10x = 100,001.60 × 46,980.69
  4. Step 4: Simplify right side
    72,464.10x = 4,698,144,169.10
  5. Step 5: Solve for x
    x = 4,698,144,169.10/72,464.10
  6. Step 6: Final answer
    x = 64,834.09

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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.