Home / 49,485.60-74,228.40-38,426.40

Finding the Fourth Proportional to 49,485.60, 74,228.40 and 38,426.40

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Solution

The fourth proportional to 49,485.60, 74,228.40 and 38,426.40 is: 57,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,485.60 : 74,228.40 = 38,426.40 : x
  2. Step 2: Convert to fraction form
    49,485.60/74,228.40 = 38,426.40/x
  3. Step 3: Cross multiply
    49,485.60x = 74,228.40 × 38,426.40
  4. Step 4: Simplify right side
    49,485.60x = 2,852,330,189.76
  5. Step 5: Solve for x
    x = 2,852,330,189.76/49,485.60
  6. Step 6: Final answer
    x = 57,639.60

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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.