Home / 91,130.79-136,822.10-62,981.49

Finding the Fourth Proportional to 91,130.79, 136,822.10 and 62,981.49

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Solution

The fourth proportional to 91,130.79, 136,822.10 and 62,981.49 is: 94,559.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,130.79 : 136,822.10 = 62,981.49 : x
  2. Step 2: Convert to fraction form
    91,130.79/136,822.10 = 62,981.49/x
  3. Step 3: Cross multiply
    91,130.79x = 136,822.10 × 62,981.49
  4. Step 4: Simplify right side
    91,130.79x = 8,617,259,408.02
  5. Step 5: Solve for x
    x = 8,617,259,408.02/91,130.79
  6. Step 6: Final answer
    x = 94,559.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.