Home / 85,331.01-127,825.10-42,507.32

Finding the Fourth Proportional to 85,331.01, 127,825.10 and 42,507.32

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Solution

The fourth proportional to 85,331.01, 127,825.10 and 42,507.32 is: 63,675.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,331.01 : 127,825.10 = 42,507.32 : x
  2. Step 2: Convert to fraction form
    85,331.01/127,825.10 = 42,507.32/x
  3. Step 3: Cross multiply
    85,331.01x = 127,825.10 × 42,507.32
  4. Step 4: Simplify right side
    85,331.01x = 5,433,502,536.76
  5. Step 5: Solve for x
    x = 5,433,502,536.76/85,331.01
  6. Step 6: Final answer
    x = 63,675.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.