Home / 91,435.69-126,191.71-51,159.66

Finding the Fourth Proportional to 91,435.69, 126,191.71 and 51,159.66

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Solution

The fourth proportional to 91,435.69, 126,191.71 and 51,159.66 is: 70,606.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,435.69 : 126,191.71 = 51,159.66 : x
  2. Step 2: Convert to fraction form
    91,435.69/126,191.71 = 51,159.66/x
  3. Step 3: Cross multiply
    91,435.69x = 126,191.71 × 51,159.66
  4. Step 4: Simplify right side
    91,435.69x = 6,455,924,978.42
  5. Step 5: Solve for x
    x = 6,455,924,978.42/91,435.69
  6. Step 6: Final answer
    x = 70,606.18

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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.