Home / 57,012.64-78,705.49-35,803.60

Finding the Fourth Proportional to 57,012.64, 78,705.49 and 35,803.60

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Solution

The fourth proportional to 57,012.64, 78,705.49 and 35,803.60 is: 49,426.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,012.64 : 78,705.49 = 35,803.60 : x
  2. Step 2: Convert to fraction form
    57,012.64/78,705.49 = 35,803.60/x
  3. Step 3: Cross multiply
    57,012.64x = 78,705.49 × 35,803.60
  4. Step 4: Simplify right side
    57,012.64x = 2,817,939,881.76
  5. Step 5: Solve for x
    x = 2,817,939,881.76/57,012.64
  6. Step 6: Final answer
    x = 49,426.58

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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.