Home / 72,169.58-99,594.36-40,337.80

Finding the Fourth Proportional to 72,169.58, 99,594.36 and 40,337.80

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Solution

The fourth proportional to 72,169.58, 99,594.36 and 40,337.80 is: 55,666.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,169.58 : 99,594.36 = 40,337.80 : x
  2. Step 2: Convert to fraction form
    72,169.58/99,594.36 = 40,337.80/x
  3. Step 3: Cross multiply
    72,169.58x = 99,594.36 × 40,337.80
  4. Step 4: Simplify right side
    72,169.58x = 4,017,417,125.82
  5. Step 5: Solve for x
    x = 4,017,417,125.82/72,169.58
  6. Step 6: Final answer
    x = 55,666.35

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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.