Home / 91,555.04-126,357.86-51,284.16

Finding the Fourth Proportional to 91,555.04, 126,357.86 and 51,284.16

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Solution

The fourth proportional to 91,555.04, 126,357.86 and 51,284.16 is: 70,778.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,555.04 : 126,357.86 = 51,284.16 : x
  2. Step 2: Convert to fraction form
    91,555.04/126,357.86 = 51,284.16/x
  3. Step 3: Cross multiply
    91,555.04x = 126,357.86 × 51,284.16
  4. Step 4: Simplify right side
    91,555.04x = 6,480,156,709.50
  5. Step 5: Solve for x
    x = 6,480,156,709.50/91,555.04
  6. Step 6: Final answer
    x = 70,778.81

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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.