Home / 51,130.56-70,563.08-30,718.86

Finding the Fourth Proportional to 51,130.56, 70,563.08 and 30,718.86

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Solution

The fourth proportional to 51,130.56, 70,563.08 and 30,718.86 is: 42,393.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,130.56 : 70,563.08 = 30,718.86 : x
  2. Step 2: Convert to fraction form
    51,130.56/70,563.08 = 30,718.86/x
  3. Step 3: Cross multiply
    51,130.56x = 70,563.08 × 30,718.86
  4. Step 4: Simplify right side
    51,130.56x = 2,167,617,375.69
  5. Step 5: Solve for x
    x = 2,167,617,375.69/51,130.56
  6. Step 6: Final answer
    x = 42,393.77

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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.