Home / 91,368.08-126,126.81-55,569.59

Finding the Fourth Proportional to 91,368.08, 126,126.81 and 55,569.59

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Solution

The fourth proportional to 91,368.08, 126,126.81 and 55,569.59 is: 76,709.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,368.08 : 126,126.81 = 55,569.59 : x
  2. Step 2: Convert to fraction form
    91,368.08/126,126.81 = 55,569.59/x
  3. Step 3: Cross multiply
    91,368.08x = 126,126.81 × 55,569.59
  4. Step 4: Simplify right side
    91,368.08x = 7,008,814,489.07
  5. Step 5: Solve for x
    x = 7,008,814,489.07/91,368.08
  6. Step 6: Final answer
    x = 76,709.67

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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.