Home / 85,899.81-118,536.38-51,888.20

Finding the Fourth Proportional to 85,899.81, 118,536.38 and 51,888.20

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Solution

The fourth proportional to 85,899.81, 118,536.38 and 51,888.20 is: 71,602.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,899.81 : 118,536.38 = 51,888.20 : x
  2. Step 2: Convert to fraction form
    85,899.81/118,536.38 = 51,888.20/x
  3. Step 3: Cross multiply
    85,899.81x = 118,536.38 × 51,888.20
  4. Step 4: Simplify right side
    85,899.81x = 6,150,639,301.77
  5. Step 5: Solve for x
    x = 6,150,639,301.77/85,899.81
  6. Step 6: Final answer
    x = 71,602.48

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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.