Home / 66,478.41-91,774.07-51,337.08

Finding the Fourth Proportional to 66,478.41, 91,774.07 and 51,337.08

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Solution

The fourth proportional to 66,478.41, 91,774.07 and 51,337.08 is: 70,871.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,478.41 : 91,774.07 = 51,337.08 : x
  2. Step 2: Convert to fraction form
    66,478.41/91,774.07 = 51,337.08/x
  3. Step 3: Cross multiply
    66,478.41x = 91,774.07 × 51,337.08
  4. Step 4: Simplify right side
    66,478.41x = 4,711,412,516.83
  5. Step 5: Solve for x
    x = 4,711,412,516.83/66,478.41
  6. Step 6: Final answer
    x = 70,871.32

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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.