Home / 53,688.16-74,093.36-31,034.72

Finding the Fourth Proportional to 53,688.16, 74,093.36 and 31,034.72

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Solution

The fourth proportional to 53,688.16, 74,093.36 and 31,034.72 is: 42,830.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,688.16 : 74,093.36 = 31,034.72 : x
  2. Step 2: Convert to fraction form
    53,688.16/74,093.36 = 31,034.72/x
  3. Step 3: Cross multiply
    53,688.16x = 74,093.36 × 31,034.72
  4. Step 4: Simplify right side
    53,688.16x = 2,299,466,681.46
  5. Step 5: Solve for x
    x = 2,299,466,681.46/53,688.16
  6. Step 6: Final answer
    x = 42,830.05

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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.