Home / 55,875.49-77,108.17-30,724.99

Finding the Fourth Proportional to 55,875.49, 77,108.17 and 30,724.99

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Solution

The fourth proportional to 55,875.49, 77,108.17 and 30,724.99 is: 42,400.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,875.49 : 77,108.17 = 30,724.99 : x
  2. Step 2: Convert to fraction form
    55,875.49/77,108.17 = 30,724.99/x
  3. Step 3: Cross multiply
    55,875.49x = 77,108.17 × 30,724.99
  4. Step 4: Simplify right side
    55,875.49x = 2,369,147,752.17
  5. Step 5: Solve for x
    x = 2,369,147,752.17/55,875.49
  6. Step 6: Final answer
    x = 42,400.48

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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.