Home / 72,259.26-99,719.55-40,430.22

Finding the Fourth Proportional to 72,259.26, 99,719.55 and 40,430.22

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Solution

The fourth proportional to 72,259.26, 99,719.55 and 40,430.22 is: 55,794.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,259.26 : 99,719.55 = 40,430.22 : x
  2. Step 2: Convert to fraction form
    72,259.26/99,719.55 = 40,430.22/x
  3. Step 3: Cross multiply
    72,259.26x = 99,719.55 × 40,430.22
  4. Step 4: Simplify right side
    72,259.26x = 4,031,683,344.80
  5. Step 5: Solve for x
    x = 4,031,683,344.80/72,259.26
  6. Step 6: Final answer
    x = 55,794.69

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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.