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Finding the Fourth Proportional to 64,109.87, 88,475 and 38,624.26

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Solution

The fourth proportional to 64,109.87, 88,475 and 38,624.26 is: 53,303.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,109.87 : 88,475 = 38,624.26 : x
  2. Step 2: Convert to fraction form
    64,109.87/88,475 = 38,624.26/x
  3. Step 3: Cross multiply
    64,109.87x = 88,475 × 38,624.26
  4. Step 4: Simplify right side
    64,109.87x = 3,417,280,961.13
  5. Step 5: Solve for x
    x = 3,417,280,961.13/64,109.87
  6. Step 6: Final answer
    x = 53,303.51

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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.