Home / 40,528-60,742.08-28,777.60

Finding the Fourth Proportional to 40,528, 60,742.08 and 28,777.60

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Solution

The fourth proportional to 40,528, 60,742.08 and 28,777.60 is: 43,130.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,528 : 60,742.08 = 28,777.60 : x
  2. Step 2: Convert to fraction form
    40,528/60,742.08 = 28,777.60/x
  3. Step 3: Cross multiply
    40,528x = 60,742.08 × 28,777.60
  4. Step 4: Simplify right side
    40,528x = 1,748,011,281.41
  5. Step 5: Solve for x
    x = 1,748,011,281.41/40,528
  6. Step 6: Final answer
    x = 43,130.95

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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.