Home / 72,223.40-99,673.34-40,395.24

Finding the Fourth Proportional to 72,223.40, 99,673.34 and 40,395.24

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Solution

The fourth proportional to 72,223.40, 99,673.34 and 40,395.24 is: 55,748.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,223.40 : 99,673.34 = 40,395.24 : x
  2. Step 2: Convert to fraction form
    72,223.40/99,673.34 = 40,395.24/x
  3. Step 3: Cross multiply
    72,223.40x = 99,673.34 × 40,395.24
  4. Step 4: Simplify right side
    72,223.40x = 4,026,328,490.90
  5. Step 5: Solve for x
    x = 4,026,328,490.90/72,223.40
  6. Step 6: Final answer
    x = 55,748.25

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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.