Home / 40,505.37-55,492.66-38,990.53

Finding the Fourth Proportional to 40,505.37, 55,492.66 and 38,990.53

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Solution

The fourth proportional to 40,505.37, 55,492.66 and 38,990.53 is: 53,417.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,505.37 : 55,492.66 = 38,990.53 : x
  2. Step 2: Convert to fraction form
    40,505.37/55,492.66 = 38,990.53/x
  3. Step 3: Cross multiply
    40,505.37x = 55,492.66 × 38,990.53
  4. Step 4: Simplify right side
    40,505.37x = 2,163,688,224.51
  5. Step 5: Solve for x
    x = 2,163,688,224.51/40,505.37
  6. Step 6: Final answer
    x = 53,417.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.