Home / 53,909.40-80,864.10-48,271.80

Finding the Fourth Proportional to 53,909.40, 80,864.10 and 48,271.80

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Solution

The fourth proportional to 53,909.40, 80,864.10 and 48,271.80 is: 72,407.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,909.40 : 80,864.10 = 48,271.80 : x
  2. Step 2: Convert to fraction form
    53,909.40/80,864.10 = 48,271.80/x
  3. Step 3: Cross multiply
    53,909.40x = 80,864.10 × 48,271.80
  4. Step 4: Simplify right side
    53,909.40x = 3,903,455,662.38
  5. Step 5: Solve for x
    x = 3,903,455,662.38/53,909.40
  6. Step 6: Final answer
    x = 72,407.70

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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.