Home / 42,505.90-64,077.20-39,651.46

Finding the Fourth Proportional to 42,505.90, 64,077.20 and 39,651.46

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Solution

The fourth proportional to 42,505.90, 64,077.20 and 39,651.46 is: 59,774.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,505.90 : 64,077.20 = 39,651.46 : x
  2. Step 2: Convert to fraction form
    42,505.90/64,077.20 = 39,651.46/x
  3. Step 3: Cross multiply
    42,505.90x = 64,077.20 × 39,651.46
  4. Step 4: Simplify right side
    42,505.90x = 2,540,754,532.71
  5. Step 5: Solve for x
    x = 2,540,754,532.71/42,505.90
  6. Step 6: Final answer
    x = 59,774.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.