Home / 48,638.40-72,957.60-42,806.40

Finding the Fourth Proportional to 48,638.40, 72,957.60 and 42,806.40

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Solution

The fourth proportional to 48,638.40, 72,957.60 and 42,806.40 is: 64,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,638.40 : 72,957.60 = 42,806.40 : x
  2. Step 2: Convert to fraction form
    48,638.40/72,957.60 = 42,806.40/x
  3. Step 3: Cross multiply
    48,638.40x = 72,957.60 × 42,806.40
  4. Step 4: Simplify right side
    48,638.40x = 3,123,052,208.64
  5. Step 5: Solve for x
    x = 3,123,052,208.64/48,638.40
  6. Step 6: Final answer
    x = 64,209.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.