Home / 99,587.16-137,428.51-54,265.46

Finding the Fourth Proportional to 99,587.16, 137,428.51 and 54,265.46

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Solution

The fourth proportional to 99,587.16, 137,428.51 and 54,265.46 is: 74,885.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,587.16 : 137,428.51 = 54,265.46 : x
  2. Step 2: Convert to fraction form
    99,587.16/137,428.51 = 54,265.46/x
  3. Step 3: Cross multiply
    99,587.16x = 137,428.51 × 54,265.46
  4. Step 4: Simplify right side
    99,587.16x = 7,457,621,312.26
  5. Step 5: Solve for x
    x = 7,457,621,312.26/99,587.16
  6. Step 6: Final answer
    x = 74,885.37

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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.