Home / 48,011.80-72,017.70-30,501.40

Finding the Fourth Proportional to 48,011.80, 72,017.70 and 30,501.40

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Solution

The fourth proportional to 48,011.80, 72,017.70 and 30,501.40 is: 45,752.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,011.80 : 72,017.70 = 30,501.40 : x
  2. Step 2: Convert to fraction form
    48,011.80/72,017.70 = 30,501.40/x
  3. Step 3: Cross multiply
    48,011.80x = 72,017.70 × 30,501.40
  4. Step 4: Simplify right side
    48,011.80x = 2,196,640,674.78
  5. Step 5: Solve for x
    x = 2,196,640,674.78/48,011.80
  6. Step 6: Final answer
    x = 45,752.10

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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.