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Finding the Fourth Proportional to 73,213, 101,000.10 and 42,988.60

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Solution

The fourth proportional to 73,213, 101,000.10 and 42,988.60 is: 59,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,213 : 101,000.10 = 42,988.60 : x
  2. Step 2: Convert to fraction form
    73,213/101,000.10 = 42,988.60/x
  3. Step 3: Cross multiply
    73,213x = 101,000.10 × 42,988.60
  4. Step 4: Simplify right side
    73,213x = 4,341,852,898.86
  5. Step 5: Solve for x
    x = 4,341,852,898.86/73,213
  6. Step 6: Final answer
    x = 59,304.40

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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.