Home / 71,384.20-98,510.10-39,555.16

Finding the Fourth Proportional to 71,384.20, 98,510.10 and 39,555.16

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Solution

The fourth proportional to 71,384.20, 98,510.10 and 39,555.16 is: 54,586.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,384.20 : 98,510.10 = 39,555.16 : x
  2. Step 2: Convert to fraction form
    71,384.20/98,510.10 = 39,555.16/x
  3. Step 3: Cross multiply
    71,384.20x = 98,510.10 × 39,555.16
  4. Step 4: Simplify right side
    71,384.20x = 3,896,582,767.12
  5. Step 5: Solve for x
    x = 3,896,582,767.12/71,384.20
  6. Step 6: Final answer
    x = 54,586.07

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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.