Home / 45,071.40-67,587.37-21,385.71

Finding the Fourth Proportional to 45,071.40, 67,587.37 and 21,385.71

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Solution

The fourth proportional to 45,071.40, 67,587.37 and 21,385.71 is: 32,069.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,071.40 : 67,587.37 = 21,385.71 : x
  2. Step 2: Convert to fraction form
    45,071.40/67,587.37 = 21,385.71/x
  3. Step 3: Cross multiply
    45,071.40x = 67,587.37 × 21,385.71
  4. Step 4: Simplify right side
    45,071.40x = 1,445,403,894.48
  5. Step 5: Solve for x
    x = 1,445,403,894.48/45,071.40
  6. Step 6: Final answer
    x = 32,069.20

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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.