Home / 42,364.40-63,547.08-12,782.52

Finding the Fourth Proportional to 42,364.40, 63,547.08 and 12,782.52

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Solution

The fourth proportional to 42,364.40, 63,547.08 and 12,782.52 is: 19,173.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,364.40 : 63,547.08 = 12,782.52 : x
  2. Step 2: Convert to fraction form
    42,364.40/63,547.08 = 12,782.52/x
  3. Step 3: Cross multiply
    42,364.40x = 63,547.08 × 12,782.52
  4. Step 4: Simplify right side
    42,364.40x = 812,291,821.04
  5. Step 5: Solve for x
    x = 812,291,821.04/42,364.40
  6. Step 6: Final answer
    x = 19,173.92

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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.