Home / 72,293.56-99,742.38-40,457.40

Finding the Fourth Proportional to 72,293.56, 99,742.38 and 40,457.40

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Solution

The fourth proportional to 72,293.56, 99,742.38 and 40,457.40 is: 55,818.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,293.56 : 99,742.38 = 40,457.40 : x
  2. Step 2: Convert to fraction form
    72,293.56/99,742.38 = 40,457.40/x
  3. Step 3: Cross multiply
    72,293.56x = 99,742.38 × 40,457.40
  4. Step 4: Simplify right side
    72,293.56x = 4,035,317,364.61
  5. Step 5: Solve for x
    x = 4,035,317,364.61/72,293.56
  6. Step 6: Final answer
    x = 55,818.49

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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.