Home / 86,158.18-118,903.74-48,434.86

Finding the Fourth Proportional to 86,158.18, 118,903.74 and 48,434.86

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Solution

The fourth proportional to 86,158.18, 118,903.74 and 48,434.86 is: 66,843.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,158.18 : 118,903.74 = 48,434.86 : x
  2. Step 2: Convert to fraction form
    86,158.18/118,903.74 = 48,434.86/x
  3. Step 3: Cross multiply
    86,158.18x = 118,903.74 × 48,434.86
  4. Step 4: Simplify right side
    86,158.18x = 5,759,086,000.38
  5. Step 5: Solve for x
    x = 5,759,086,000.38/86,158.18
  6. Step 6: Final answer
    x = 66,843.17

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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.