Home / 74,802.56-103,233.69-42,547.28

Finding the Fourth Proportional to 74,802.56, 103,233.69 and 42,547.28

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Solution

The fourth proportional to 74,802.56, 103,233.69 and 42,547.28 is: 58,718.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,802.56 : 103,233.69 = 42,547.28 : x
  2. Step 2: Convert to fraction form
    74,802.56/103,233.69 = 42,547.28/x
  3. Step 3: Cross multiply
    74,802.56x = 103,233.69 × 42,547.28
  4. Step 4: Simplify right side
    74,802.56x = 4,392,312,197.69
  5. Step 5: Solve for x
    x = 4,392,312,197.69/74,802.56
  6. Step 6: Final answer
    x = 58,718.75

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1.5x scale

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.