Home / 85,013.16-117,132.12-56,284.08

Finding the Fourth Proportional to 85,013.16, 117,132.12 and 56,284.08

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Solution

The fourth proportional to 85,013.16, 117,132.12 and 56,284.08 is: 77,548.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,013.16 : 117,132.12 = 56,284.08 : x
  2. Step 2: Convert to fraction form
    85,013.16/117,132.12 = 56,284.08/x
  3. Step 3: Cross multiply
    85,013.16x = 117,132.12 × 56,284.08
  4. Step 4: Simplify right side
    85,013.16x = 6,592,673,612.65
  5. Step 5: Solve for x
    x = 6,592,673,612.65/85,013.16
  6. Step 6: Final answer
    x = 77,548.86

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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.