Home / 72,416.84-99,935.10-40,585.73

Finding the Fourth Proportional to 72,416.84, 99,935.10 and 40,585.73

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Solution

The fourth proportional to 72,416.84, 99,935.10 and 40,585.73 is: 56,008.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,416.84 : 99,935.10 = 40,585.73 : x
  2. Step 2: Convert to fraction form
    72,416.84/99,935.10 = 40,585.73/x
  3. Step 3: Cross multiply
    72,416.84x = 99,935.10 × 40,585.73
  4. Step 4: Simplify right side
    72,416.84x = 4,055,938,486.45
  5. Step 5: Solve for x
    x = 4,055,938,486.45/72,416.84
  6. Step 6: Final answer
    x = 56,008.23

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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.