Home / 72,418.06-99,927.30-40,587.49

Finding the Fourth Proportional to 72,418.06, 99,927.30 and 40,587.49

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Solution

The fourth proportional to 72,418.06, 99,927.30 and 40,587.49 is: 56,005.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,418.06 : 99,927.30 = 40,587.49 : x
  2. Step 2: Convert to fraction form
    72,418.06/99,927.30 = 40,587.49/x
  3. Step 3: Cross multiply
    72,418.06x = 99,927.30 × 40,587.49
  4. Step 4: Simplify right side
    72,418.06x = 4,055,798,289.48
  5. Step 5: Solve for x
    x = 4,055,798,289.48/72,418.06
  6. Step 6: Final answer
    x = 56,005.34

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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.