Home / 53,852.48-74,314.64-29,978.40

Finding the Fourth Proportional to 53,852.48, 74,314.64 and 29,978.40

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Solution

The fourth proportional to 53,852.48, 74,314.64 and 29,978.40 is: 41,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,852.48 : 74,314.64 = 29,978.40 : x
  2. Step 2: Convert to fraction form
    53,852.48/74,314.64 = 29,978.40/x
  3. Step 3: Cross multiply
    53,852.48x = 74,314.64 × 29,978.40
  4. Step 4: Simplify right side
    53,852.48x = 2,227,834,003.78
  5. Step 5: Solve for x
    x = 2,227,834,003.78/53,852.48
  6. Step 6: Final answer
    x = 41,369.20

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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.