Home / 52,637.68-72,639.74-31,135.15

Finding the Fourth Proportional to 52,637.68, 72,639.74 and 31,135.15

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Solution

The fourth proportional to 52,637.68, 72,639.74 and 31,135.15 is: 42,966.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,637.68 : 72,639.74 = 31,135.15 : x
  2. Step 2: Convert to fraction form
    52,637.68/72,639.74 = 31,135.15/x
  3. Step 3: Cross multiply
    52,637.68x = 72,639.74 × 31,135.15
  4. Step 4: Simplify right side
    52,637.68x = 2,261,648,681.99
  5. Step 5: Solve for x
    x = 2,261,648,681.99/52,637.68
  6. Step 6: Final answer
    x = 42,966.35

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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.