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Finding the Fourth Proportional to 98,623.80, 147,935.70 and 56,633.40

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Solution

The fourth proportional to 98,623.80, 147,935.70 and 56,633.40 is: 84,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,623.80 : 147,935.70 = 56,633.40 : x
  2. Step 2: Convert to fraction form
    98,623.80/147,935.70 = 56,633.40/x
  3. Step 3: Cross multiply
    98,623.80x = 147,935.70 × 56,633.40
  4. Step 4: Simplify right side
    98,623.80x = 8,378,101,672.38
  5. Step 5: Solve for x
    x = 8,378,101,672.38/98,623.80
  6. Step 6: Final answer
    x = 84,950.10

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