Home / 90,716.10-125,104.47-56,713.74

Finding the Fourth Proportional to 90,716.10, 125,104.47 and 56,713.74

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Solution

The fourth proportional to 90,716.10, 125,104.47 and 56,713.74 is: 78,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,716.10 : 125,104.47 = 56,713.74 : x
  2. Step 2: Convert to fraction form
    90,716.10/125,104.47 = 56,713.74/x
  3. Step 3: Cross multiply
    90,716.10x = 125,104.47 × 56,713.74
  4. Step 4: Simplify right side
    90,716.10x = 7,095,142,384.42
  5. Step 5: Solve for x
    x = 7,095,142,384.42/90,716.10
  6. Step 6: Final answer
    x = 78,212.60

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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.