Home / 91,308.81-126,011.03-51,023.55

Finding the Fourth Proportional to 91,308.81, 126,011.03 and 51,023.55

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Solution

The fourth proportional to 91,308.81, 126,011.03 and 51,023.55 is: 70,415.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,308.81 : 126,011.03 = 51,023.55 : x
  2. Step 2: Convert to fraction form
    91,308.81/126,011.03 = 51,023.55/x
  3. Step 3: Cross multiply
    91,308.81x = 126,011.03 × 51,023.55
  4. Step 4: Simplify right side
    91,308.81x = 6,429,529,834.64
  5. Step 5: Solve for x
    x = 6,429,529,834.64/91,308.81
  6. Step 6: Final answer
    x = 70,415.22

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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.