Home / 51,840.16-71,549.52-30,618.40

Finding the Fourth Proportional to 51,840.16, 71,549.52 and 30,618.40

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Solution

The fourth proportional to 51,840.16, 71,549.52 and 30,618.40 is: 42,259.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,840.16 : 71,549.52 = 30,618.40 : x
  2. Step 2: Convert to fraction form
    51,840.16/71,549.52 = 30,618.40/x
  3. Step 3: Cross multiply
    51,840.16x = 71,549.52 × 30,618.40
  4. Step 4: Simplify right side
    51,840.16x = 2,190,731,823.17
  5. Step 5: Solve for x
    x = 2,190,731,823.17/51,840.16
  6. Step 6: Final answer
    x = 42,259.36

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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.