Home / 91,677.32-126,576.57-57,274.67

Finding the Fourth Proportional to 91,677.32, 126,576.57 and 57,274.67

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Solution

The fourth proportional to 91,677.32, 126,576.57 and 57,274.67 is: 79,077.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,677.32 : 126,576.57 = 57,274.67 : x
  2. Step 2: Convert to fraction form
    91,677.32/126,576.57 = 57,274.67/x
  3. Step 3: Cross multiply
    91,677.32x = 126,576.57 × 57,274.67
  4. Step 4: Simplify right side
    91,677.32x = 7,249,631,451.71
  5. Step 5: Solve for x
    x = 7,249,631,451.71/91,677.32
  6. Step 6: Final answer
    x = 79,077.70

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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.