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Finding the Fourth Proportional to 58,130.68, 87,202.08 and 20,694.20

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Solution

The fourth proportional to 58,130.68, 87,202.08 and 20,694.20 is: 31,043.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,130.68 : 87,202.08 = 20,694.20 : x
  2. Step 2: Convert to fraction form
    58,130.68/87,202.08 = 20,694.20/x
  3. Step 3: Cross multiply
    58,130.68x = 87,202.08 × 20,694.20
  4. Step 4: Simplify right side
    58,130.68x = 1,804,577,283.94
  5. Step 5: Solve for x
    x = 1,804,577,283.94/58,130.68
  6. Step 6: Final answer
    x = 31,043.46

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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.