Home / 51,037.48-70,434.05-28,378.77

Finding the Fourth Proportional to 51,037.48, 70,434.05 and 28,378.77

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Solution

The fourth proportional to 51,037.48, 70,434.05 and 28,378.77 is: 39,164.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,037.48 : 70,434.05 = 28,378.77 : x
  2. Step 2: Convert to fraction form
    51,037.48/70,434.05 = 28,378.77/x
  3. Step 3: Cross multiply
    51,037.48x = 70,434.05 × 28,378.77
  4. Step 4: Simplify right side
    51,037.48x = 1,998,831,705.12
  5. Step 5: Solve for x
    x = 1,998,831,705.12/51,037.48
  6. Step 6: Final answer
    x = 39,164.00

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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.