Home / 57,013.77-78,685.85-33,140.45

Finding the Fourth Proportional to 57,013.77, 78,685.85 and 33,140.45

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Solution

The fourth proportional to 57,013.77, 78,685.85 and 33,140.45 is: 45,737.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,013.77 : 78,685.85 = 33,140.45 : x
  2. Step 2: Convert to fraction form
    57,013.77/78,685.85 = 33,140.45/x
  3. Step 3: Cross multiply
    57,013.77x = 78,685.85 × 33,140.45
  4. Step 4: Simplify right side
    57,013.77x = 2,607,683,918.50
  5. Step 5: Solve for x
    x = 2,607,683,918.50/57,013.77
  6. Step 6: Final answer
    x = 45,737.79

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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.