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Finding the Fourth Proportional to 60,840.63, 91,265.76 and 21,406.59

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Solution

The fourth proportional to 60,840.63, 91,265.76 and 21,406.59 is: 32,111.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,840.63 : 91,265.76 = 21,406.59 : x
  2. Step 2: Convert to fraction form
    60,840.63/91,265.76 = 21,406.59/x
  3. Step 3: Cross multiply
    60,840.63x = 91,265.76 × 21,406.59
  4. Step 4: Simplify right side
    60,840.63x = 1,953,688,705.36
  5. Step 5: Solve for x
    x = 1,953,688,705.36/60,840.63
  6. Step 6: Final answer
    x = 32,111.58

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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.