Home / 72,748.19-100,384.38-40,916.41

Finding the Fourth Proportional to 72,748.19, 100,384.38 and 40,916.41

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Solution

The fourth proportional to 72,748.19, 100,384.38 and 40,916.41 is: 56,460.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,748.19 : 100,384.38 = 40,916.41 : x
  2. Step 2: Convert to fraction form
    72,748.19/100,384.38 = 40,916.41/x
  3. Step 3: Cross multiply
    72,748.19x = 100,384.38 × 40,916.41
  4. Step 4: Simplify right side
    72,748.19x = 4,107,368,198.71
  5. Step 5: Solve for x
    x = 4,107,368,198.71/72,748.19
  6. Step 6: Final answer
    x = 56,460.07

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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.