Home / 66,429.92-91,602.96-42,557.60

Finding the Fourth Proportional to 66,429.92, 91,602.96 and 42,557.60

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Solution

The fourth proportional to 66,429.92, 91,602.96 and 42,557.60 is: 58,684.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429.92 : 91,602.96 = 42,557.60 : x
  2. Step 2: Convert to fraction form
    66,429.92/91,602.96 = 42,557.60/x
  3. Step 3: Cross multiply
    66,429.92x = 91,602.96 × 42,557.60
  4. Step 4: Simplify right side
    66,429.92x = 3,898,402,130.50
  5. Step 5: Solve for x
    x = 3,898,402,130.50/66,429.92
  6. Step 6: Final answer
    x = 58,684.43

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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.