Home / 90,463.80-124,758.34-56,475.45

Finding the Fourth Proportional to 90,463.80, 124,758.34 and 56,475.45

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Solution

The fourth proportional to 90,463.80, 124,758.34 and 56,475.45 is: 77,885.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,463.80 : 124,758.34 = 56,475.45 : x
  2. Step 2: Convert to fraction form
    90,463.80/124,758.34 = 56,475.45/x
  3. Step 3: Cross multiply
    90,463.80x = 124,758.34 × 56,475.45
  4. Step 4: Simplify right side
    90,463.80x = 7,045,783,392.75
  5. Step 5: Solve for x
    x = 7,045,783,392.75/90,463.80
  6. Step 6: Final answer
    x = 77,885.11

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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.