Home / 89,417.40-133,931.70-54,295.80

Finding the Fourth Proportional to 89,417.40, 133,931.70 and 54,295.80

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Solution

The fourth proportional to 89,417.40, 133,931.70 and 54,295.80 is: 81,325.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,417.40 : 133,931.70 = 54,295.80 : x
  2. Step 2: Convert to fraction form
    89,417.40/133,931.70 = 54,295.80/x
  3. Step 3: Cross multiply
    89,417.40x = 133,931.70 × 54,295.80
  4. Step 4: Simplify right side
    89,417.40x = 7,271,928,796.86
  5. Step 5: Solve for x
    x = 7,271,928,796.86/89,417.40
  6. Step 6: Final answer
    x = 81,325.66

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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.