Home / 53,812.08-74,239.20-34,689.60

Finding the Fourth Proportional to 53,812.08, 74,239.20 and 34,689.60

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Solution

The fourth proportional to 53,812.08, 74,239.20 and 34,689.60 is: 47,857.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,812.08 : 74,239.20 = 34,689.60 : x
  2. Step 2: Convert to fraction form
    53,812.08/74,239.20 = 34,689.60/x
  3. Step 3: Cross multiply
    53,812.08x = 74,239.20 × 34,689.60
  4. Step 4: Simplify right side
    53,812.08x = 2,575,328,152.32
  5. Step 5: Solve for x
    x = 2,575,328,152.32/53,812.08
  6. Step 6: Final answer
    x = 47,857.81

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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.