Home / 64,741.20-97,111.80-38,432.40

Finding the Fourth Proportional to 64,741.20, 97,111.80 and 38,432.40

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Solution

The fourth proportional to 64,741.20, 97,111.80 and 38,432.40 is: 57,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,741.20 : 97,111.80 = 38,432.40 : x
  2. Step 2: Convert to fraction form
    64,741.20/97,111.80 = 38,432.40/x
  3. Step 3: Cross multiply
    64,741.20x = 97,111.80 × 38,432.40
  4. Step 4: Simplify right side
    64,741.20x = 3,732,239,542.32
  5. Step 5: Solve for x
    x = 3,732,239,542.32/64,741.20
  6. Step 6: Final answer
    x = 57,648.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.