Home / 78,332.52-108,155.04-48,158.32

Finding the Fourth Proportional to 78,332.52, 108,155.04 and 48,158.32

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Solution

The fourth proportional to 78,332.52, 108,155.04 and 48,158.32 is: 66,493.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,332.52 : 108,155.04 = 48,158.32 : x
  2. Step 2: Convert to fraction form
    78,332.52/108,155.04 = 48,158.32/x
  3. Step 3: Cross multiply
    78,332.52x = 108,155.04 × 48,158.32
  4. Step 4: Simplify right side
    78,332.52x = 5,208,565,025.93
  5. Step 5: Solve for x
    x = 5,208,565,025.93/78,332.52
  6. Step 6: Final answer
    x = 66,493.01

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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.