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Finding the Fourth Proportional to 47,497.60, 70,860.16 and 40,528

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Solution

The fourth proportional to 47,497.60, 70,860.16 and 40,528 is: 60,462.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,497.60 : 70,860.16 = 40,528 : x
  2. Step 2: Convert to fraction form
    47,497.60/70,860.16 = 40,528/x
  3. Step 3: Cross multiply
    47,497.60x = 70,860.16 × 40,528
  4. Step 4: Simplify right side
    47,497.60x = 2,871,820,564.48
  5. Step 5: Solve for x
    x = 2,871,820,564.48/47,497.60
  6. Step 6: Final answer
    x = 60,462.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.