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Finding the Fourth Proportional to 45,938.16, 63,401.60 and 28,043.60

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Solution

The fourth proportional to 45,938.16, 63,401.60 and 28,043.60 is: 38,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,938.16 : 63,401.60 = 28,043.60 : x
  2. Step 2: Convert to fraction form
    45,938.16/63,401.60 = 28,043.60/x
  3. Step 3: Cross multiply
    45,938.16x = 63,401.60 × 28,043.60
  4. Step 4: Simplify right side
    45,938.16x = 1,778,009,109.76
  5. Step 5: Solve for x
    x = 1,778,009,109.76/45,938.16
  6. Step 6: Final answer
    x = 38,704.40

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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.