Home / 57,341.20-85,841.70-42,615.40

Finding the Fourth Proportional to 57,341.20, 85,841.70 and 42,615.40

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Solution

The fourth proportional to 57,341.20, 85,841.70 and 42,615.40 is: 63,796.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,341.20 : 85,841.70 = 42,615.40 : x
  2. Step 2: Convert to fraction form
    57,341.20/85,841.70 = 42,615.40/x
  3. Step 3: Cross multiply
    57,341.20x = 85,841.70 × 42,615.40
  4. Step 4: Simplify right side
    57,341.20x = 3,658,178,382.18
  5. Step 5: Solve for x
    x = 3,658,178,382.18/57,341.20
  6. Step 6: Final answer
    x = 63,796.68

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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.