Home / 85,555.12-118,070.55-51,574.39

Finding the Fourth Proportional to 85,555.12, 118,070.55 and 51,574.39

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Solution

The fourth proportional to 85,555.12, 118,070.55 and 51,574.39 is: 71,175.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,555.12 : 118,070.55 = 51,574.39 : x
  2. Step 2: Convert to fraction form
    85,555.12/118,070.55 = 51,574.39/x
  3. Step 3: Cross multiply
    85,555.12x = 118,070.55 × 51,574.39
  4. Step 4: Simplify right side
    85,555.12x = 6,089,416,593.21
  5. Step 5: Solve for x
    x = 6,089,416,593.21/85,555.12
  6. Step 6: Final answer
    x = 71,175.36

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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.