Home / 85,314.34-117,669.10-51,320.26

Finding the Fourth Proportional to 85,314.34, 117,669.10 and 51,320.26

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Solution

The fourth proportional to 85,314.34, 117,669.10 and 51,320.26 is: 70,783.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,314.34 : 117,669.10 = 51,320.26 : x
  2. Step 2: Convert to fraction form
    85,314.34/117,669.10 = 51,320.26/x
  3. Step 3: Cross multiply
    85,314.34x = 117,669.10 × 51,320.26
  4. Step 4: Simplify right side
    85,314.34x = 6,038,808,805.97
  5. Step 5: Solve for x
    x = 6,038,808,805.97/85,314.34
  6. Step 6: Final answer
    x = 70,783.05

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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.