Home / 98,339.47-135,688.13-57,495.72

Finding the Fourth Proportional to 98,339.47, 135,688.13 and 57,495.72

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Solution

The fourth proportional to 98,339.47, 135,688.13 and 57,495.72 is: 79,332.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,339.47 : 135,688.13 = 57,495.72 : x
  2. Step 2: Convert to fraction form
    98,339.47/135,688.13 = 57,495.72/x
  3. Step 3: Cross multiply
    98,339.47x = 135,688.13 × 57,495.72
  4. Step 4: Simplify right side
    98,339.47x = 7,801,487,166.76
  5. Step 5: Solve for x
    x = 7,801,487,166.76/98,339.47
  6. Step 6: Final answer
    x = 79,332.21

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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.