Home / 72,434.32-99,959.04-40,603.22

Finding the Fourth Proportional to 72,434.32, 99,959.04 and 40,603.22

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Solution

The fourth proportional to 72,434.32, 99,959.04 and 40,603.22 is: 56,032.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,434.32 : 99,959.04 = 40,603.22 : x
  2. Step 2: Convert to fraction form
    72,434.32/99,959.04 = 40,603.22/x
  3. Step 3: Cross multiply
    72,434.32x = 99,959.04 × 40,603.22
  4. Step 4: Simplify right side
    72,434.32x = 4,058,658,892.11
  5. Step 5: Solve for x
    x = 4,058,658,892.11/72,434.32
  6. Step 6: Final answer
    x = 56,032.26

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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.