Home / 85,864.64-118,485.60-48,133.76

Finding the Fourth Proportional to 85,864.64, 118,485.60 and 48,133.76

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Solution

The fourth proportional to 85,864.64, 118,485.60 and 48,133.76 is: 66,420.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,864.64 : 118,485.60 = 48,133.76 : x
  2. Step 2: Convert to fraction form
    85,864.64/118,485.60 = 48,133.76/x
  3. Step 3: Cross multiply
    85,864.64x = 118,485.60 × 48,133.76
  4. Step 4: Simplify right side
    85,864.64x = 5,703,157,433.86
  5. Step 5: Solve for x
    x = 5,703,157,433.86/85,864.64
  6. Step 6: Final answer
    x = 66,420.33

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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.