Home / 74,175.16-102,307.50-54,038.20

Finding the Fourth Proportional to 74,175.16, 102,307.50 and 54,038.20

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Solution

The fourth proportional to 74,175.16, 102,307.50 and 54,038.20 is: 74,533.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,175.16 : 102,307.50 = 54,038.20 : x
  2. Step 2: Convert to fraction form
    74,175.16/102,307.50 = 54,038.20/x
  3. Step 3: Cross multiply
    74,175.16x = 102,307.50 × 54,038.20
  4. Step 4: Simplify right side
    74,175.16x = 5,528,513,146.50
  5. Step 5: Solve for x
    x = 5,528,513,146.50/74,175.16
  6. Step 6: Final answer
    x = 74,533.21

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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.