Home / 85,804.38-118,343.25-51,777.36

Finding the Fourth Proportional to 85,804.38, 118,343.25 and 51,777.36

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Solution

The fourth proportional to 85,804.38, 118,343.25 and 51,777.36 is: 71,412.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,804.38 : 118,343.25 = 51,777.36 : x
  2. Step 2: Convert to fraction form
    85,804.38/118,343.25 = 51,777.36/x
  3. Step 3: Cross multiply
    85,804.38x = 118,343.25 × 51,777.36
  4. Step 4: Simplify right side
    85,804.38x = 6,127,501,058.82
  5. Step 5: Solve for x
    x = 6,127,501,058.82/85,804.38
  6. Step 6: Final answer
    x = 71,412.45

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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.