Home / 47,875.93-66,078.80-28,756.54

Finding the Fourth Proportional to 47,875.93, 66,078.80 and 28,756.54

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Solution

The fourth proportional to 47,875.93, 66,078.80 and 28,756.54 is: 39,690.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,875.93 : 66,078.80 = 28,756.54 : x
  2. Step 2: Convert to fraction form
    47,875.93/66,078.80 = 28,756.54/x
  3. Step 3: Cross multiply
    47,875.93x = 66,078.80 × 28,756.54
  4. Step 4: Simplify right side
    47,875.93x = 1,900,197,655.35
  5. Step 5: Solve for x
    x = 1,900,197,655.35/47,875.93
  6. Step 6: Final answer
    x = 39,690.04

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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.