Home / 85,315.34-117,670.48-51,321.26

Finding the Fourth Proportional to 85,315.34, 117,670.48 and 51,321.26

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Solution

The fourth proportional to 85,315.34, 117,670.48 and 51,321.26 is: 70,784.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,315.34 : 117,670.48 = 51,321.26 : x
  2. Step 2: Convert to fraction form
    85,315.34/117,670.48 = 51,321.26/x
  3. Step 3: Cross multiply
    85,315.34x = 117,670.48 × 51,321.26
  4. Step 4: Simplify right side
    85,315.34x = 6,038,997,298.40
  5. Step 5: Solve for x
    x = 6,038,997,298.40/85,315.34
  6. Step 6: Final answer
    x = 70,784.43

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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.