Home / 47,359.20-71,038.80-42,985.20

Finding the Fourth Proportional to 47,359.20, 71,038.80 and 42,985.20

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Solution

The fourth proportional to 47,359.20, 71,038.80 and 42,985.20 is: 64,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,359.20 : 71,038.80 = 42,985.20 : x
  2. Step 2: Convert to fraction form
    47,359.20/71,038.80 = 42,985.20/x
  3. Step 3: Cross multiply
    47,359.20x = 71,038.80 × 42,985.20
  4. Step 4: Simplify right side
    47,359.20x = 3,053,617,025.76
  5. Step 5: Solve for x
    x = 3,053,617,025.76/47,359.20
  6. Step 6: Final answer
    x = 64,477.80

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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.