Home / 55,875.36-77,144.40-34,685.76

Finding the Fourth Proportional to 55,875.36, 77,144.40 and 34,685.76

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Solution

The fourth proportional to 55,875.36, 77,144.40 and 34,685.76 is: 47,888.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,875.36 : 77,144.40 = 34,685.76 : x
  2. Step 2: Convert to fraction form
    55,875.36/77,144.40 = 34,685.76/x
  3. Step 3: Cross multiply
    55,875.36x = 77,144.40 × 34,685.76
  4. Step 4: Simplify right side
    55,875.36x = 2,675,812,143.74
  5. Step 5: Solve for x
    x = 2,675,812,143.74/55,875.36
  6. Step 6: Final answer
    x = 47,888.95

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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.