Home / 86,985.64-130,528.68-47,004.76

Finding the Fourth Proportional to 86,985.64, 130,528.68 and 47,004.76

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Solution

The fourth proportional to 86,985.64, 130,528.68 and 47,004.76 is: 70,534.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,985.64 : 130,528.68 = 47,004.76 : x
  2. Step 2: Convert to fraction form
    86,985.64/130,528.68 = 47,004.76/x
  3. Step 3: Cross multiply
    86,985.64x = 130,528.68 × 47,004.76
  4. Step 4: Simplify right side
    86,985.64x = 6,135,469,276.52
  5. Step 5: Solve for x
    x = 6,135,469,276.52/86,985.64
  6. Step 6: Final answer
    x = 70,534.28

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1.5x scale

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.