Home / 105,779.24-145,967.94-58,031.48

Finding the Fourth Proportional to 105,779.24, 145,967.94 and 58,031.48

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Solution

The fourth proportional to 105,779.24, 145,967.94 and 58,031.48 is: 80,079.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,779.24 : 145,967.94 = 58,031.48 : x
  2. Step 2: Convert to fraction form
    105,779.24/145,967.94 = 58,031.48/x
  3. Step 3: Cross multiply
    105,779.24x = 145,967.94 × 58,031.48
  4. Step 4: Simplify right side
    105,779.24x = 8,470,735,590.75
  5. Step 5: Solve for x
    x = 8,470,735,590.75/105,779.24
  6. Step 6: Final answer
    x = 80,079.38

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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.