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Finding the Fourth Proportional to 48,347.40, 72,521.10 and 28,615.80

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Solution

The fourth proportional to 48,347.40, 72,521.10 and 28,615.80 is: 42,923.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,347.40 : 72,521.10 = 28,615.80 : x
  2. Step 2: Convert to fraction form
    48,347.40/72,521.10 = 28,615.80/x
  3. Step 3: Cross multiply
    48,347.40x = 72,521.10 × 28,615.80
  4. Step 4: Simplify right side
    48,347.40x = 2,075,249,293.38
  5. Step 5: Solve for x
    x = 2,075,249,293.38/48,347.40
  6. Step 6: Final answer
    x = 42,923.70

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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.