Home / 72,340.04-99,822.78-40,502.16

Finding the Fourth Proportional to 72,340.04, 99,822.78 and 40,502.16

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Solution

The fourth proportional to 72,340.04, 99,822.78 and 40,502.16 is: 55,889.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,340.04 : 99,822.78 = 40,502.16 : x
  2. Step 2: Convert to fraction form
    72,340.04/99,822.78 = 40,502.16/x
  3. Step 3: Cross multiply
    72,340.04x = 99,822.78 × 40,502.16
  4. Step 4: Simplify right side
    72,340.04x = 4,043,038,207.20
  5. Step 5: Solve for x
    x = 4,043,038,207.20/72,340.04
  6. Step 6: Final answer
    x = 55,889.36

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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.