Home / 85,312.33-117,666.35-51,318.25

Finding the Fourth Proportional to 85,312.33, 117,666.35 and 51,318.25

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Solution

The fourth proportional to 85,312.33, 117,666.35 and 51,318.25 is: 70,780.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,312.33 : 117,666.35 = 51,318.25 : x
  2. Step 2: Convert to fraction form
    85,312.33/117,666.35 = 51,318.25/x
  3. Step 3: Cross multiply
    85,312.33x = 117,666.35 × 51,318.25
  4. Step 4: Simplify right side
    85,312.33x = 6,038,430,909.30
  5. Step 5: Solve for x
    x = 6,038,430,909.30/85,312.33
  6. Step 6: Final answer
    x = 70,780.28

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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.