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Finding the Fourth Proportional to 60,071.42, 90,144.19 and 30,510.47

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Solution

The fourth proportional to 60,071.42, 90,144.19 and 30,510.47 is: 45,784.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,071.42 : 90,144.19 = 30,510.47 : x
  2. Step 2: Convert to fraction form
    60,071.42/90,144.19 = 30,510.47/x
  3. Step 3: Cross multiply
    60,071.42x = 90,144.19 × 30,510.47
  4. Step 4: Simplify right side
    60,071.42x = 2,750,341,868.17
  5. Step 5: Solve for x
    x = 2,750,341,868.17/60,071.42
  6. Step 6: Final answer
    x = 45,784.53

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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.