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Finding the Fourth Proportional to 75,006.80, 112,510.20 and 56,417.30

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Solution

The fourth proportional to 75,006.80, 112,510.20 and 56,417.30 is: 84,625.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,006.80 : 112,510.20 = 56,417.30 : x
  2. Step 2: Convert to fraction form
    75,006.80/112,510.20 = 56,417.30/x
  3. Step 3: Cross multiply
    75,006.80x = 112,510.20 × 56,417.30
  4. Step 4: Simplify right side
    75,006.80x = 6,347,521,706.46
  5. Step 5: Solve for x
    x = 6,347,521,706.46/75,006.80
  6. Step 6: Final answer
    x = 84,625.95

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1.5x scale

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.