Home / 48,031.60-72,004.20-30,492.40

Finding the Fourth Proportional to 48,031.60, 72,004.20 and 30,492.40

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Solution

The fourth proportional to 48,031.60, 72,004.20 and 30,492.40 is: 45,711.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,031.60 : 72,004.20 = 30,492.40 : x
  2. Step 2: Convert to fraction form
    48,031.60/72,004.20 = 30,492.40/x
  3. Step 3: Cross multiply
    48,031.60x = 72,004.20 × 30,492.40
  4. Step 4: Simplify right side
    48,031.60x = 2,195,580,868.08
  5. Step 5: Solve for x
    x = 2,195,580,868.08/48,031.60
  6. Step 6: Final answer
    x = 45,711.17

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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.