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Finding the Fourth Proportional to 88,870.80, 133,363.80 and 51,430.80

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Solution

The fourth proportional to 88,870.80, 133,363.80 and 51,430.80 is: 77,179.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,870.80 : 133,363.80 = 51,430.80 : x
  2. Step 2: Convert to fraction form
    88,870.80/133,363.80 = 51,430.80/x
  3. Step 3: Cross multiply
    88,870.80x = 133,363.80 × 51,430.80
  4. Step 4: Simplify right side
    88,870.80x = 6,859,006,925.04
  5. Step 5: Solve for x
    x = 6,859,006,925.04/88,870.80
  6. Step 6: Final answer
    x = 77,179.53

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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.