Home / 40,068.24-55,235.16-31,543.02

Finding the Fourth Proportional to 40,068.24, 55,235.16 and 31,543.02

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Solution

The fourth proportional to 40,068.24, 55,235.16 and 31,543.02 is: 43,482.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,068.24 : 55,235.16 = 31,543.02 : x
  2. Step 2: Convert to fraction form
    40,068.24/55,235.16 = 31,543.02/x
  3. Step 3: Cross multiply
    40,068.24x = 55,235.16 × 31,543.02
  4. Step 4: Simplify right side
    40,068.24x = 1,742,283,756.58
  5. Step 5: Solve for x
    x = 1,742,283,756.58/40,068.24
  6. Step 6: Final answer
    x = 43,482.91

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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.