Home / 72,041.70-99,417.66-40,210.59

Finding the Fourth Proportional to 72,041.70, 99,417.66 and 40,210.59

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Solution

The fourth proportional to 72,041.70, 99,417.66 and 40,210.59 is: 55,490.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,041.70 : 99,417.66 = 40,210.59 : x
  2. Step 2: Convert to fraction form
    72,041.70/99,417.66 = 40,210.59/x
  3. Step 3: Cross multiply
    72,041.70x = 99,417.66 × 40,210.59
  4. Step 4: Simplify right side
    72,041.70x = 3,997,642,765.02
  5. Step 5: Solve for x
    x = 3,997,642,765.02/72,041.70
  6. Step 6: Final answer
    x = 55,490.68

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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.