Home / 87,130.21-130,573.67-47,062.81

Finding the Fourth Proportional to 87,130.21, 130,573.67 and 47,062.81

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Solution

The fourth proportional to 87,130.21, 130,573.67 and 47,062.81 is: 70,528.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,130.21 : 130,573.67 = 47,062.81 : x
  2. Step 2: Convert to fraction form
    87,130.21/130,573.67 = 47,062.81/x
  3. Step 3: Cross multiply
    87,130.21x = 130,573.67 × 47,062.81
  4. Step 4: Simplify right side
    87,130.21x = 6,145,163,750.12
  5. Step 5: Solve for x
    x = 6,145,163,750.12/87,130.21
  6. Step 6: Final answer
    x = 70,528.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.