Home / 84,936.96-117,264.16-56,280.80

Finding the Fourth Proportional to 84,936.96, 117,264.16 and 56,280.80

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Solution

The fourth proportional to 84,936.96, 117,264.16 and 56,280.80 is: 77,701.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,936.96 : 117,264.16 = 56,280.80 : x
  2. Step 2: Convert to fraction form
    84,936.96/117,264.16 = 56,280.80/x
  3. Step 3: Cross multiply
    84,936.96x = 117,264.16 × 56,280.80
  4. Step 4: Simplify right side
    84,936.96x = 6,599,720,736.13
  5. Step 5: Solve for x
    x = 6,599,720,736.13/84,936.96
  6. Step 6: Final answer
    x = 77,701.40

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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.