Home / 99,634.21-137,492.45-54,313.07

Finding the Fourth Proportional to 99,634.21, 137,492.45 and 54,313.07

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Solution

The fourth proportional to 99,634.21, 137,492.45 and 54,313.07 is: 74,950.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,634.21 : 137,492.45 = 54,313.07 : x
  2. Step 2: Convert to fraction form
    99,634.21/137,492.45 = 54,313.07/x
  3. Step 3: Cross multiply
    99,634.21x = 137,492.45 × 54,313.07
  4. Step 4: Simplify right side
    99,634.21x = 7,467,637,061.32
  5. Step 5: Solve for x
    x = 7,467,637,061.32/99,634.21
  6. Step 6: Final answer
    x = 74,950.53

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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.