Home / 51,261.08-70,740.30-28,905.08

Finding the Fourth Proportional to 51,261.08, 70,740.30 and 28,905.08

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Solution

The fourth proportional to 51,261.08, 70,740.30 and 28,905.08 is: 39,889.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,261.08 : 70,740.30 = 28,905.08 : x
  2. Step 2: Convert to fraction form
    51,261.08/70,740.30 = 28,905.08/x
  3. Step 3: Cross multiply
    51,261.08x = 70,740.30 × 28,905.08
  4. Step 4: Simplify right side
    51,261.08x = 2,044,754,030.72
  5. Step 5: Solve for x
    x = 2,044,754,030.72/51,261.08
  6. Step 6: Final answer
    x = 39,889.02

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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.