Home / 42,357.16-63,544.02-12,777.40

Finding the Fourth Proportional to 42,357.16, 63,544.02 and 12,777.40

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Solution

The fourth proportional to 42,357.16, 63,544.02 and 12,777.40 is: 19,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,357.16 : 63,544.02 = 12,777.40 : x
  2. Step 2: Convert to fraction form
    42,357.16/63,544.02 = 12,777.40/x
  3. Step 3: Cross multiply
    42,357.16x = 63,544.02 × 12,777.40
  4. Step 4: Simplify right side
    42,357.16x = 811,927,361.15
  5. Step 5: Solve for x
    x = 811,927,361.15/42,357.16
  6. Step 6: Final answer
    x = 19,168.60

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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.