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Finding the Fourth Proportional to 60,572.50, 90,862.40 and 19,019.50

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Solution

The fourth proportional to 60,572.50, 90,862.40 and 19,019.50 is: 28,530.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,572.50 : 90,862.40 = 19,019.50 : x
  2. Step 2: Convert to fraction form
    60,572.50/90,862.40 = 19,019.50/x
  3. Step 3: Cross multiply
    60,572.50x = 90,862.40 × 19,019.50
  4. Step 4: Simplify right side
    60,572.50x = 1,728,157,416.80
  5. Step 5: Solve for x
    x = 1,728,157,416.80/60,572.50
  6. Step 6: Final answer
    x = 28,530.40

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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.