Home / 76,514.36-105,587.28-42,059.20

Finding the Fourth Proportional to 76,514.36, 105,587.28 and 42,059.20

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Solution

The fourth proportional to 76,514.36, 105,587.28 and 42,059.20 is: 58,040.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,514.36 : 105,587.28 = 42,059.20 : x
  2. Step 2: Convert to fraction form
    76,514.36/105,587.28 = 42,059.20/x
  3. Step 3: Cross multiply
    76,514.36x = 105,587.28 × 42,059.20
  4. Step 4: Simplify right side
    76,514.36x = 4,440,916,876.24
  5. Step 5: Solve for x
    x = 4,440,916,876.24/76,514.36
  6. Step 6: Final answer
    x = 58,040.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.