Home / 47,981.60-72,058.80-46,426.40

Finding the Fourth Proportional to 47,981.60, 72,058.80 and 46,426.40

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Solution

The fourth proportional to 47,981.60, 72,058.80 and 46,426.40 is: 69,723.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,981.60 : 72,058.80 = 46,426.40 : x
  2. Step 2: Convert to fraction form
    47,981.60/72,058.80 = 46,426.40/x
  3. Step 3: Cross multiply
    47,981.60x = 72,058.80 × 46,426.40
  4. Step 4: Simplify right side
    47,981.60x = 3,345,430,672.32
  5. Step 5: Solve for x
    x = 3,345,430,672.32/47,981.60
  6. Step 6: Final answer
    x = 69,723.20

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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.