Home / 78,415.18-108,214.68-46,584.16

Finding the Fourth Proportional to 78,415.18, 108,214.68 and 46,584.16

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Solution

The fourth proportional to 78,415.18, 108,214.68 and 46,584.16 is: 64,287.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,415.18 : 108,214.68 = 46,584.16 : x
  2. Step 2: Convert to fraction form
    78,415.18/108,214.68 = 46,584.16/x
  3. Step 3: Cross multiply
    78,415.18x = 108,214.68 × 46,584.16
  4. Step 4: Simplify right side
    78,415.18x = 5,041,089,967.47
  5. Step 5: Solve for x
    x = 5,041,089,967.47/78,415.18
  6. Step 6: Final answer
    x = 64,287.17

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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.