Home / 58,145.12-87,209.44-18,697.20

Finding the Fourth Proportional to 58,145.12, 87,209.44 and 18,697.20

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Solution

The fourth proportional to 58,145.12, 87,209.44 and 18,697.20 is: 28,043.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,145.12 : 87,209.44 = 18,697.20 : x
  2. Step 2: Convert to fraction form
    58,145.12/87,209.44 = 18,697.20/x
  3. Step 3: Cross multiply
    58,145.12x = 87,209.44 × 18,697.20
  4. Step 4: Simplify right side
    58,145.12x = 1,630,572,341.57
  5. Step 5: Solve for x
    x = 1,630,572,341.57/58,145.12
  6. Step 6: Final answer
    x = 28,043.15

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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.