Home / 76,875.05-106,044.92-45,037.80

Finding the Fourth Proportional to 76,875.05, 106,044.92 and 45,037.80

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Solution

The fourth proportional to 76,875.05, 106,044.92 and 45,037.80 is: 62,127.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,875.05 : 106,044.92 = 45,037.80 : x
  2. Step 2: Convert to fraction form
    76,875.05/106,044.92 = 45,037.80/x
  3. Step 3: Cross multiply
    76,875.05x = 106,044.92 × 45,037.80
  4. Step 4: Simplify right side
    76,875.05x = 4,776,029,897.98
  5. Step 5: Solve for x
    x = 4,776,029,897.98/76,875.05
  6. Step 6: Final answer
    x = 62,127.18

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1.5x scale

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.