Home / 90,788.64-125,253.85-56,317.38

Finding the Fourth Proportional to 90,788.64, 125,253.85 and 56,317.38

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Solution

The fourth proportional to 90,788.64, 125,253.85 and 56,317.38 is: 77,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,788.64 : 125,253.85 = 56,317.38 : x
  2. Step 2: Convert to fraction form
    90,788.64/125,253.85 = 56,317.38/x
  3. Step 3: Cross multiply
    90,788.64x = 125,253.85 × 56,317.38
  4. Step 4: Simplify right side
    90,788.64x = 7,053,968,666.91
  5. Step 5: Solve for x
    x = 7,053,968,666.91/90,788.64
  6. Step 6: Final answer
    x = 77,696.60

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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.