Home / 72,292.23-99,762.30-40,461.12

Finding the Fourth Proportional to 72,292.23, 99,762.30 and 40,461.12

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Solution

The fourth proportional to 72,292.23, 99,762.30 and 40,461.12 is: 55,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,292.23 : 99,762.30 = 40,461.12 : x
  2. Step 2: Convert to fraction form
    72,292.23/99,762.30 = 40,461.12/x
  3. Step 3: Cross multiply
    72,292.23x = 99,762.30 × 40,461.12
  4. Step 4: Simplify right side
    72,292.23x = 4,036,494,391.78
  5. Step 5: Solve for x
    x = 4,036,494,391.78/72,292.23
  6. Step 6: Final answer
    x = 55,835.80

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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.