Home / 86,157.68-118,903.04-48,434.36

Finding the Fourth Proportional to 86,157.68, 118,903.04 and 48,434.36

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Solution

The fourth proportional to 86,157.68, 118,903.04 and 48,434.36 is: 66,842.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,157.68 : 118,903.04 = 48,434.36 : x
  2. Step 2: Convert to fraction form
    86,157.68/118,903.04 = 48,434.36/x
  3. Step 3: Cross multiply
    86,157.68x = 118,903.04 × 48,434.36
  4. Step 4: Simplify right side
    86,157.68x = 5,758,992,644.45
  5. Step 5: Solve for x
    x = 5,758,992,644.45/86,157.68
  6. Step 6: Final answer
    x = 66,842.48

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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.