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Finding the Fourth Proportional to 48,655.70, 72,957.05 and 21,970.42

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Solution

The fourth proportional to 48,655.70, 72,957.05 and 21,970.42 is: 32,943.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,655.70 : 72,957.05 = 21,970.42 : x
  2. Step 2: Convert to fraction form
    48,655.70/72,957.05 = 21,970.42/x
  3. Step 3: Cross multiply
    48,655.70x = 72,957.05 × 21,970.42
  4. Step 4: Simplify right side
    48,655.70x = 1,602,897,030.46
  5. Step 5: Solve for x
    x = 1,602,897,030.46/48,655.70
  6. Step 6: Final answer
    x = 32,943.66

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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.