Home / 53,688.81-74,090.69-29,815.50

Finding the Fourth Proportional to 53,688.81, 74,090.69 and 29,815.50

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Solution

The fourth proportional to 53,688.81, 74,090.69 and 29,815.50 is: 41,145.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,688.81 : 74,090.69 = 29,815.50 : x
  2. Step 2: Convert to fraction form
    53,688.81/74,090.69 = 29,815.50/x
  3. Step 3: Cross multiply
    53,688.81x = 74,090.69 × 29,815.50
  4. Step 4: Simplify right side
    53,688.81x = 2,209,050,967.70
  5. Step 5: Solve for x
    x = 2,209,050,967.70/53,688.81
  6. Step 6: Final answer
    x = 41,145.46

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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.