Home / 51,586.45-77,386.02-19,997.05

Finding the Fourth Proportional to 51,586.45, 77,386.02 and 19,997.05

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Solution

The fourth proportional to 51,586.45, 77,386.02 and 19,997.05 is: 29,998.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,586.45 : 77,386.02 = 19,997.05 : x
  2. Step 2: Convert to fraction form
    51,586.45/77,386.02 = 19,997.05/x
  3. Step 3: Cross multiply
    51,586.45x = 77,386.02 × 19,997.05
  4. Step 4: Simplify right side
    51,586.45x = 1,547,492,111.24
  5. Step 5: Solve for x
    x = 1,547,492,111.24/51,586.45
  6. Step 6: Final answer
    x = 29,998.03

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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.