Home / 93,409.07-128,931.98-53,145.32

Finding the Fourth Proportional to 93,409.07, 128,931.98 and 53,145.32

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Solution

The fourth proportional to 93,409.07, 128,931.98 and 53,145.32 is: 73,356.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,409.07 : 128,931.98 = 53,145.32 : x
  2. Step 2: Convert to fraction form
    93,409.07/128,931.98 = 53,145.32/x
  3. Step 3: Cross multiply
    93,409.07x = 128,931.98 × 53,145.32
  4. Step 4: Simplify right side
    93,409.07x = 6,852,130,424.95
  5. Step 5: Solve for x
    x = 6,852,130,424.95/93,409.07
  6. Step 6: Final answer
    x = 73,356.16

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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.