Home / 72,340.08-99,827.03-40,073.40

Finding the Fourth Proportional to 72,340.08, 99,827.03 and 40,073.40

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Solution

The fourth proportional to 72,340.08, 99,827.03 and 40,073.40 is: 55,300.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,340.08 : 99,827.03 = 40,073.40 : x
  2. Step 2: Convert to fraction form
    72,340.08/99,827.03 = 40,073.40/x
  3. Step 3: Cross multiply
    72,340.08x = 99,827.03 × 40,073.40
  4. Step 4: Simplify right side
    72,340.08x = 4,000,408,303.64
  5. Step 5: Solve for x
    x = 4,000,408,303.64/72,340.08
  6. Step 6: Final answer
    x = 55,300.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.