Home / 75,290.08-112,937.40-19,130.20

Finding the Fourth Proportional to 75,290.08, 112,937.40 and 19,130.20

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Solution

The fourth proportional to 75,290.08, 112,937.40 and 19,130.20 is: 28,695.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,290.08 : 112,937.40 = 19,130.20 : x
  2. Step 2: Convert to fraction form
    75,290.08/112,937.40 = 19,130.20/x
  3. Step 3: Cross multiply
    75,290.08x = 112,937.40 × 19,130.20
  4. Step 4: Simplify right side
    75,290.08x = 2,160,514,484.79
  5. Step 5: Solve for x
    x = 2,160,514,484.79/75,290.08
  6. Step 6: Final answer
    x = 28,695.87

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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.