Home / 78,170.13-117,412.09-46,641.71

Finding the Fourth Proportional to 78,170.13, 117,412.09 and 46,641.71

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Solution

The fourth proportional to 78,170.13, 117,412.09 and 46,641.71 is: 70,056.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,170.13 : 117,412.09 = 46,641.71 : x
  2. Step 2: Convert to fraction form
    78,170.13/117,412.09 = 46,641.71/x
  3. Step 3: Cross multiply
    78,170.13x = 117,412.09 × 46,641.71
  4. Step 4: Simplify right side
    78,170.13x = 5,476,300,652.27
  5. Step 5: Solve for x
    x = 5,476,300,652.27/78,170.13
  6. Step 6: Final answer
    x = 70,056.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.