Home / 78,392.04-108,107.32-60,458.64

Finding the Fourth Proportional to 78,392.04, 108,107.32 and 60,458.64

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Solution

The fourth proportional to 78,392.04, 108,107.32 and 60,458.64 is: 83,376.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,392.04 : 108,107.32 = 60,458.64 : x
  2. Step 2: Convert to fraction form
    78,392.04/108,107.32 = 60,458.64/x
  3. Step 3: Cross multiply
    78,392.04x = 108,107.32 × 60,458.64
  4. Step 4: Simplify right side
    78,392.04x = 6,536,021,541.24
  5. Step 5: Solve for x
    x = 6,536,021,541.24/78,392.04
  6. Step 6: Final answer
    x = 83,376.09

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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.