Home / 91,437.46-126,178.62-51,143.45

Finding the Fourth Proportional to 91,437.46, 126,178.62 and 51,143.45

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Solution

The fourth proportional to 91,437.46, 126,178.62 and 51,143.45 is: 70,575.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,437.46 : 126,178.62 = 51,143.45 : x
  2. Step 2: Convert to fraction form
    91,437.46/126,178.62 = 51,143.45/x
  3. Step 3: Cross multiply
    91,437.46x = 126,178.62 × 51,143.45
  4. Step 4: Simplify right side
    91,437.46x = 6,453,209,312.15
  5. Step 5: Solve for x
    x = 6,453,209,312.15/91,437.46
  6. Step 6: Final answer
    x = 70,575.12

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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.